pat1071-1080

1071

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e3+5;
typedef long long ll;
#define MP(x, y) make_pair(x, y);

char a[1048580];
map<string, int> mp;
map<string, int> ::iterator it;
int main() {
  gets(a);
  int len = strlen(a);
  string tt;
  for(int i = 0; i <= len; ++i) {
    if( (a[i] >= 'a' && a[i] <= 'z') || (a[i] >= 'A' && a[i] <= 'Z') || (a[i] >= '0' && a[i] <= '9') ) {
      if(a[i] >= 'A' && a[i] <= 'Z') a[i] = a[i]-'A'+'a';

      tt += a[i];
    }
    else {
      if(tt.size() > 0) mp[tt] ++;
      tt.clear();
    }
  }
  string a1; int a2 = -1;
  for(it = mp.begin(); it != mp.end(); ++it) {
    if(a2 < it->second) {
      a1 = it->first;
      a2 = it->second;
    }
  }

  printf("%s %d\n", a1.c_str(), a2);
  return 0;
}

1072 一道非常麻烦的最短路问题

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e3+50;
typedef long long ll;
#define MP(x, y) make_pair(x, y);

int n,m,k,d;
map<string, int> mp;
double ans1, ans2; string ans3;

char nam[N][10];
int tol;
struct Node{
  int to, nx, di;
}E[N*N*2];
int head[N], tot;

void add(int fr, int to, int di) {
  E[tot].to = to; E[tot].di = di; E[tot].nx = head[fr]; head[fr] = tot ++;
}

struct Hode{
  int po, di;
  Hode(int a=0, int b=0):po(a), di(b) {}
  bool operator< (const Hode & T) const {
    return di > T.di;
  }
};

int dis[N];
int vis[N];
string change(int x, int ty) {
  vector<int> vc;
  while(x) {
    vc.push_back(x % 10);
    x /= 10;
  }
  string tmp;
  if(ty) tmp += 'G';
  for(int i = vc.size()-1; i >= 0; --i) {
    tmp += vc[i]+'0';
  }
  return tmp;
}
void dij(int x) {
  memset(vis, 0, sizeof(vis));
  memset(dis, INF, sizeof(dis));
  dis[x] = 0;
  priority_queue<Hode> Q;
  Q.push(Hode(x, dis[x]));
  while(!Q.empty()) {
    int po = Q.top().po; Q.pop();
    if(vis[po]) continue;
    vis[po] = 1;
    for(int i = head[po]; ~i; i = E[i].nx) {
      int to = E[i].to;
      if(dis[to] > dis[po] + E[i].di) {
        dis[to] = dis[po] + E[i].di;
        Q.push(Hode(to, dis[to]));
      }
    }
  }
  int fl = 1; int tmp = INF; int all = 0;
  for(int i = 1; i <= n; ++i) {
    string tt = change(i, 0);
    int id = mp[tt];
    if( dis[id] > d) {
      fl = 0; break;
    }
    if(dis[id] < tmp) {
      tmp = dis[id];
    }
    all += dis[id];
//    printf("%d ", dis[id]);
  }
//  printf("%d %.2f %s\n", fl, all*1.0/n, nam[x]);

  if(fl && tmp*1.0 > ans1) {
    ans3 = nam[x];
    ans1 = tmp*1.0; 
    ans2 = all*1.0 / n;
  }else if(fl && tmp*1.0 == ans1 && all*1.0/n < ans2) {
    ans2 = all*1.0 / n;
    ans3 = nam[x];
  }
}  

int main() {
  while(~scanf("%d %d %d %d",&n, &m, &k, &d)) {
    ans1 = -1.0;

    mp.clear(); tot = 0;
    memset(head, -1, sizeof(head));
    tol = 0;

    for(int i = 0; i < k; ++i) {
      char s1[10]; char s2[10]; int a;
      scanf("%s %s %d", s1, s2, &a);
      if(mp.find(s1) == mp.end()) {
        ++tol;
        for(int j = 0; j <= strlen(s1); ++j) nam[tol][j] = s1[j];
        mp[s1] = tol;
      }
      if(mp.find(s2) == mp.end()) {
        ++tol;
        for(int j = 0; j <= strlen(s2); ++j) nam[tol][j] = s2[j];
        mp[s2] = tol;
      }
      int t1 = mp[s1]; int t2 = mp[s2];
    //  if(s1[0] == 'G' && s2[0] == 'G') continue;
      add(t1, t2, a); add(t2, t1, a);
    }  
    for(int i = 1; i <= m; ++i) {
      string tt = change(i, 1);
    //  printf("%s %d\n", tt.c_str(), mp[tt]);
      int id = mp[tt];
      dij(id);
    }

    if(ans1 == -1) printf("No Solution\n");
    else {
      printf("%s\n%.1f %.1f\n", ans3.c_str(), round(ans1*10) /10, round(ans2*10)/10 );
    }
  }
  return 0;
}

1073

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e3+50;
typedef long long ll;
#define MP(x, y) make_pair(x, y);

char s[10000];
char t[10000];
int main() {
  while(~scanf("%s", s)) {
    int len = strlen(s);
    int cnt = 0;

    if(s[0] == '-') printf("-");
    int edpoi = -1;
    int tag = 0;
    for(int i = 1; i < len; ++i) {
      if(s[i] == '.') edpoi = cnt-1;
      else if(s[i] == 'E') {
        tag = i; break;
      }else t[cnt++] = s[i];
    }
    if(edpoi == -1) edpoi = cnt-1;

    int tmp = 0;
    for(int i = tag+2; i < len; ++i) {
      tmp = tmp*10 + s[i]-'0';
    }
    if(s[tag+1] == '-') tmp *= -1;
  //  printf("%d %d\n", edpoi, tmp);  

    int nwpoi = edpoi + tmp;
    if(nwpoi < 0) {
      printf("0.");
      for(int i = 0; i < abs(nwpoi+1); ++i) printf("0");
    }

    for(int i = 0; i < cnt; ++i) {
      printf("%c", t[i]); 
      if(i == nwpoi && i != cnt-1) printf(".");
    }  
    if(nwpoi > cnt-1) {
      for(int i = 0; i < nwpoi-cnt+1; ++i) printf("0");
    }

    printf("\n");
  }  
  return 0;
}

1074

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e6+5;
typedef long long ll;
#define MP(x, y) make_pair(x, y);

int key[N]; int nx[N];
vector<int> tmp;
vector<int> ans;
int head, n, k;
void dfs(int x) {
  if(x == -1) return;
  tmp.push_back(x);
  if(tmp.size() == k) {
    for(int i = k-1; i >= 0; --i) {
      ans.push_back(tmp[i]);
    }
    tmp.clear();
  }

  dfs(nx[x]);
}
int main() {
  while(~scanf("%d %d %d", &head, &n, &k)) {
    for(int i = 0; i < n; ++i) {
      int a, b, c; scanf("%d %d %d", &a, &b, &c);
      key[a] = b; nx[a] = c;
    }

    dfs(head);
    for(int i = 0; i < tmp.size(); ++i) ans.push_back(tmp[i]);

    for(int i = 0; i < ans.size(); ++i) {
      printf("%05d %d ", ans[i], key[ans[i]]);
      if(i == ans.size()-1) printf("-1\n");
      else printf("%05d\n", ans[i+1]);
    }
  }  
  return 0;
}

1075

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e4+5;
typedef long long ll;
#define MP(x, y) make_pair(x, y);
int n,m,k;
int mark[6];

map<int, int> mp;

struct Node{
  int num; 
  int grade[6];
}E[N];
int tot;
int cmp(Node a, Node b) {
  int a1 = 0; int b1 = 0; 
  int a2 = 0; int b2 = 0;
  for(int j = 1; j <= k; ++j) {
    a1 += a.grade[j], b1 += b.grade[j];
    if(a.grade[j] == -1) a1 ++; else if(a.grade[j] == -2) a1 += 2;
    if(b.grade[j] == -1) b1 ++; else if(b.grade[j] == -2) b1 += 2;

    if(a.grade[j] == mark[j]) a2 ++;
    if(b.grade[j] == mark[j]) b2 ++;
  }

  if(a1 != b1) return a1 > b1;
  else if(a2 != b2) return a2 > b2;
  else return a.num < b.num;
}
int main() {
  while(~scanf("%d %d %d", &n, &k, &m)) {

    tot = 0;
    mp.clear();
    for(int i = 1; i <= k; ++i) scanf("%d", &mark[i]);

    for(int i = 0; i < m; ++i) {
      int a, b, c; scanf("%d %d %d", &a, &b, &c);
      if(mp.find(a) == mp.end()) {
        mp[a] = ++tot;
        for(int j = 1; j <= k; ++j) E[tot].grade[j] = -2;
      }
      int id = mp[a];
      E[id].num = a;
      E[id].grade[b] = max(E[id].grade[b], c);
    }

    sort(E+1, E+tot+1, cmp);
    int pre = -1, prerank;
    int cnt = 0;

    for(int i = 1; i <= tot; ++i) {
      int no = 0; int all = 0; int nwrank;
      for(int j = 1; j <= k; ++j) {
        if(E[i].grade[j] <= -1) no ++;
        all += E[i].grade[j];

        if(E[i].grade[j] == -1) all ++; 
        else if(E[i].grade[j] == -2) all += 2;
      }
      if(no == k) { cnt ++; continue; }

      if(pre == all) nwrank = prerank;
      else nwrank = i-cnt;

      printf("%d %05d %d", nwrank, E[i].num, all);
      for(int j = 1; j <= k; ++j) {
        if(E[i].grade[j] == -2) printf(" -");
        else if(E[i].grade[j] == -1) printf(" 0");
        else printf(" %d", E[i].grade[j]);
      }
      printf("\n");

      pre = all; prerank = nwrank;
    }
  }
  return 0;
}

1076

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e3+5;
typedef long long ll;
#define MP(x, y) make_pair(x, y)

int  n,l;
struct Node{
  int to, nx;
}E[N*N*2];
int head[N], tot;

void add(int fr, int to) {
  E[tot].to = to; E[tot].nx = head[fr]; head[fr] = tot++;
}
int vis[N];
void bfs(int x) {
  for(int i = 1; i <= n; ++i) vis[i] = 0;
  vis[x] = 1;
  queue<pair<int, int> > Q;
  Q.push(MP(x, 0));
  int ans = 0;
  while(!Q.empty()) {
    int po = Q.front().first; int dep = Q.front().second; Q.pop();
    if(dep > l) break;
    ans ++;
    for(int i = head[po]; ~i; i = E[i].nx) {
      int to = E[i].to;
      if(!vis[to]) {
        vis[to] = 1;
        Q.push(MP(to, dep+1));
      }
    }
  }
  printf("%d\n",ans-1);
}
int main() {
  while(~scanf("%d %d", &n, &l)) {
    memset(head, -1, sizeof(head));
    tot = 0;

    for(int i = 1; i <= n; ++i) {
      int a; scanf("%d", &a);
      for(int j = 0; j < a; ++j) {
        int b; scanf("%d", &b);
        add(b, i);
      }
    }
    int k; scanf("%d", &k);
    for(int i = 1; i <= k; ++i) {
      int a; scanf("%d", &a);
      bfs(a);
    }
  }
  return 0;
}

1077

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e3+5;
typedef long long ll;
#define MP(x, y) make_pair(x, y)

char s[105][300];
int main() {
  int n;
  while(~scanf("%d", &n)) {
    getchar();
    for(int i = 0; i < n; ++i) {
      gets(s[i]);
    //  printf("tt %s\n", s[i]);  
      for(int j = 0; j < strlen(s[i])/2; ++j) {
        swap(s[i][j], s[i][strlen(s[i])-j-1]);
      }
  //    printf("%s\n", s[i]);
    }
    vector<char> ans;
    int fl = 0;
    while(1) {
      int nw = 1;
      for(int i = 1; i < n; ++i) {
        if(s[i][fl] != s[i-1][fl] || s[i][fl] == 0) {
          nw = 0; break;
        }
      }
      if(!nw) break;
      else ans.push_back(s[0][fl]);
      fl ++;
    }


    if(ans.size() == 0) printf("nai\n");
    else {
      for(int i = ans.size()-1; i >= 0; --i) printf("%c", ans[i]); printf("\n");
    }
  }
  return 0;
}

1078 这道题提醒了我得把 数据结构学好，等题目刷完我要开始看数据结构啦

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e4+5;
typedef long long ll;
#define MP(x, y) make_pair(x, y)

int has[N];
int prime(int x) {
  if(x == 1) return 0;
  if(x == 2) return 1;
  for(int i = 2; i <= sqrt(x); ++i) {
    if(x % i == 0) return 0;
  }
  return 1;
}
int main() {
  int msize, n;
  while(~scanf("%d %d", &msize, &n)) {
    memset(has, 0, sizeof(has));

    while(1) {
      if(prime(msize)) break;
      msize ++;
    }

    for(int i = 0; i < n; ++i) {
      int a; scanf("%d", &a);
      if(i) printf(" ");
      if(!has[a%msize]) {
        has[a%msize] = a;
        printf("%d", a%msize);
      }else{
        int fl = 0;
        for(int j = 1; j < msize; ++j) {
          int tmp = (a + j*j) % msize;
        //  if(tmp >= msize) break;
          if(!has[tmp]) {
            has[tmp] = a; 
            fl = 1;
            printf("%d", tmp);
            break;
          }
        }
        if(!fl)   printf("-");
      }
    }
    printf("\n");

  }
  return 0;
}

1079

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
#include<queue>
#include<algorithm>
#include<ctime>
#include<cstdlib>
#include<map>
#include<set>

using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1e5+5;
typedef long long ll;
#define MP(x, y) make_pair(x, y)

int n; double p, r;
struct Node{
  int to, nx;
}E[N*1000];
int head[N]; int tot;
void add(int fr, int to) {
  E[tot].to = to; E[tot].nx = head[fr]; head[fr] = tot++;
}
int product[N]; int has[N];
double ans;
void dfs(int x, double price) {
  if(has[x]) {
    ans += product[x] * price;
    return;
  } 
  for(int i = head[x]; ~i; i = E[i].nx) {
    int to = E[i].to;
    dfs(to, price*(1+ r/100));
  }
}
int main() {
  while(~scanf("%d %lf %lf", &n, &p, &r)) {
    memset(head, -1, sizeof(head));
    memset(has, 0, sizeof(has));
    tot = 0; ans = 0;
    for(int i = 0; i < n; ++i) {
      int a; scanf("%d", &a);
      for(int j = 0; j < a; ++j) {
        int b; scanf("%d", &b);
        add(i, b);
      }
      if(!a) {
        scanf("%d", &a);
        product[i] = a;  has[i] = 1;
      }
    }

    dfs(0, p);
    printf("%.1f\n", ans);
  }
  return 0;
}

1080

#include<cmath>
#include<map>
#include<iostream>
#include<cstring>
#include<cstdio>
#include<set>
#include<vector>
#include<algorithm>
using namespace std;
typedef long long ll;
const int N = 4e4+5;
const int INF = 0x3f3f3f3f;
const double eps = 1e-7;
const int MOD = 1e9+7;

int quota[105];

int Ge[N], Gi[N], Ch[N][6];
int Id[N];
int cmp(int a, int b) {
  if(Ge[a]+Gi[a] != Ge[b]+Gi[b]) return Ge[a]+Gi[a] > Ge[b]+Gi[b];
  else return Ge[a] > Ge[b];
}
vector<int> ans[105];
int has[N];
int n,m,k;
void solve(int fr, int to) {
  int temp[105];
  for(int i = 0; i < k; ++i) {
    int cnt = 0;
    for(int j = 0; j < m; ++j) temp[j] = ans[j].size();
    for(int j = fr; j <= to; ++j) {
      int tt = Ch[Id[j]][i];
      if(has[Id[j]]) continue;
      cnt ++;
      if(temp[tt] < quota[tt]) {
        ans[tt].push_back(Id[j]);
        has[Id[j]] = 1;
      }
    }
    if(!cnt) break;
  }
}
int main() {
  while(~scanf("%d %d %d", &n, &m, &k)) {
    memset(has, 0, sizeof(has));
    for(int i = 0; i < m; ++i) ans[i].clear();
    for(int i = 0; i < m; ++i) scanf("%d", &quota[i]);

    for(int i = 0; i < n; ++i) {
      scanf("%d %d", &Ge[i], &Gi[i]);
      for(int j = 0; j < k; ++j) {
        scanf("%d", &Ch[i][j]);
      }
    }

    for(int i = 0; i <= n; ++i) Id[i] = i;
    sort(Id, Id+n, cmp);

    Ge[n] = INF;
    int fr = 0; int to = -1; 
    for(int i = 0; i < n; ++i) {
      to ++;
      if(Ge[Id[i]]+Gi[Id[i]] != Ge[Id[i+1]]+Gi[Id[i+1]] || Ge[Id[i]] != Ge[Id[i+1]]) solve(fr, to), fr = to+1;
    }

    for(int i = 0; i < m; ++i) {
      sort(ans[i].begin(), ans[i].end());
      for(int j = 0; j < ans[i].size(); ++j) {
        if(j) printf(" "); printf("%d",ans[i][j]);
      }
      printf("\n");
    }
  }
  return 0;
}