【HDOJ】4393 Throw nails

水题，优先级队列。

  1 /* 4393 */
  2 #include <iostream>
  3 #include <sstream>
  4 #include <string>
  5 #include <map>
  6 #include <queue>
  7 #include <set>
  8 #include <stack>
  9 #include <vector>
 10 #include <deque>
 11 #include <algorithm>
 12 #include <cstdio>
 13 #include <cmath>
 14 #include <ctime>
 15 #include <cstring>
 16 #include <climits>
 17 #include <cctype>
 18 #include <cassert>
 19 #include <functional>
 20 #include <iterator>
 21 #include <iomanip>
 22 using namespace std;
 23 //#pragma comment(linker,"/STACK:102400000,1024000")
 24 
 25 #define sti                set<int>
 26 #define stpii            set<pair<int, int> >
 27 #define mpii            map<int,int>
 28 #define vi                vector<int>
 29 #define pii                pair<int,int>
 30 #define vpii            vector<pair<int,int> >
 31 #define rep(i, a, n)     for (int i=a;i<n;++i)
 32 #define per(i, a, n)     for (int i=n-1;i>=a;--i)
 33 #define clr                clear
 34 #define pb                 push_back
 35 #define mp                 make_pair
 36 #define fir                first
 37 #define sec                second
 38 #define all(x)             (x).begin(),(x).end()
 39 #define SZ(x)             ((int)(x).size())
 40 #define lson            l, mid, rt<<1
 41 #define rson            mid+1, r, rt<<1|1
 42 
 43 typedef struct node_t {
 44     int dis, id;
 45     
 46     
 47     node_t() {}
 48     node_t(int dis, int id):
 49         dis(dis), id(id) {}
 50         
 51     friend bool operator< (const node_t& a, const node_t& b) {
 52         if (a.dis == b.dis)
 53             return a.id > b.id;
 54         return a.dis < b.dis;
 55     }
 56     
 57 } node_t;
 58 
 59 const int maxn = 50005;
 60 const int maxq = 101;
 61 int delta[maxq];
 62 priority_queue<node_t> Q[maxq];
 63 int ans[maxn];
 64 
 65 void init() {
 66     memset(delta, 0, sizeof(delta));
 67     rep(i, 1, maxq)
 68         while (!Q[i].empty())
 69             Q[i].pop();
 70 }
 71 
 72 int main() {
 73     ios::sync_with_stdio(false);
 74     #ifndef ONLINE_JUDGE
 75         freopen("data.in", "r", stdin);
 76         freopen("data.out", "w", stdout);
 77     #endif
 78     
 79     int t;
 80     int f, s;
 81     int n;
 82     
 83     scanf("%d", &t);
 84     rep(tt, 1, t+1) {
 85         scanf("%d", &n);
 86         init();
 87         rep(i, 1, n+1) {
 88             scanf("%d %d", &f, &s);
 89             Q[s].push(node_t(f, i));
 90         }
 91         
 92         int mx, v, id, tmp;
 93         node_t nd;
 94         
 95         rep(i, 0, n) {
 96             mx = -1;
 97             rep(j, 1, 101) {
 98                 if (!Q[j].empty()) {
 99                     nd = Q[j].top();
100                     if (nd.dis+delta[j] > mx) {
101                         mx = delta[j] + nd.dis;
102                         id = nd.id;
103                         v = j;
104                     } else if (nd.dis+delta[j]==mx && nd.id<id) {
105                         id = nd.id;
106                         v = j;
107                     }
108                 }
109                 delta[j] += j;
110             }
111             ans[i] = id;
112             Q[v].pop();
113         }
114         
115         printf("Case #%d:\n", tt);
116         printf("%d", ans[0]);
117         rep(i, 1, n)
118             printf(" %d", ans[i]);
119         putchar('\n');
120     }
121     
122     #ifndef ONLINE_JUDGE
123         printf("time = %d.\n", (int)clock());
124     #endif
125     
126     return 0;
127 }

 

posted on 2016-01-31 21:56  Bombe  阅读(153)  评论(0)  编辑  收藏  举报

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