[hdu5373 The shortest problem]模拟

http://acm.hdu.edu.cn/showproblem.php?pid=5373

思路：按题意来即可。

 

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

using namespace std;

#define X                   first
#define Y                   second
#define pb                  push_back
#define mp                  make_pair
#define all(a)              (a).begin(), (a).end()
#define fillchar(a, x)      memset(a, x, sizeof(a))
#define copy(a, b)          memcpy(a, b, sizeof(a))

typedef long long ll;
typedef pair<int, int> pii;
typedef unsigned long long ull;

//#ifndef ONLINE_JUDGE
void RI(vector<int>&a,int n){a.resize(n);for(int i=0;i<n;i++)scanf("%d",&a[i]);}
void RI(){}void RI(int&X){scanf("%d",&X);}template<typename...R>
void RI(int&f,R&...r){RI(f);RI(r...);}void RI(int*p,int*q){int d=p<q?1:-1;
while(p!=q){scanf("%d",p);p+=d;}}void print(){cout<<endl;}template<typename T>
void print(const T t){cout<<t<<endl;}template<typename F,typename...R>
void print(const F f,const R...r){cout<<f<<", ";print(r...);}template<typename T>
void print(T*p, T*q){int d=p<q?1:-1;while(p!=q){cout<<*p<<", ";p+=d;}cout<<endl;}
//#endif
template<typename T>bool umax(T&a, const T&b){return b<=a?false:(a=b,true);}
template<typename T>bool umin(T&a, const T&b){return b>=a?false:(a=b,true);}
template<typename T>
void V2A(T a[],const vector<T>&b){for(int i=0;i<b.size();i++)a[i]=b[i];}
template<typename T>
void A2V(vector<T>&a,const T b[]){for(int i=0;i<a.size();i++)a[i]=b[i];}

const double PI = acos(-1.0);
const int INF = 1e9 + 7;
const double EPS = 1e-8;

/* -------------------------------------------------------------------------------- */

int get(int sum, int &x, int &mark) {
    if (sum == 0) {
        x = 0;
        mark = 1;
        return 0;
    }
    mark = 0;
    x = 0;
    int ans = 0;
    while (sum) {
        mark ^= 1;
        if (mark) ans += sum % 10;
        else ans -= sum % 10;
        x += sum % 10;
        sum /= 10;
    }
    return ans;
}

int main() {
#ifndef ONLINE_JUDGE
    freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
#endif // ONLINE_JUDGE
    int n, t, cas = 0;
    while (cin >> n >> t, n != -1 && t != -1) {
        int mark, sum, ans;
        ans = get(n, sum, mark);
        for (int i = 0; i < t; i ++) {
            int x, buf = get(sum, x, mark);
            if (mark) ans = -ans + buf;
            else ans = ans + buf;
            sum += x;
        }
        printf("Case #%d: %s\n", ++ cas, ans % 11? "No" : "Yes");
    }
    return 0;
}
posted @ 2015-08-12 13:50  jklongint  阅读(156)  评论(0)  编辑  收藏  举报