CodeForces 760A Petr and a calendar
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题目链接:http://codeforces.com/contest/760/problem/A
题意:告诉你现在是几月,并告诉你这月的第一天是几号现在问你这个月的日历有几列(假设都是非闰年)
解析:最少的列数肯定是 该月的天数/7,然后剩下的补就好,二月要特殊考虑
#include <iostream>#include <cstdio>#include <algorithm>#include <vector>#include <cstring>#include <queue>#include <map>using namespace std;const int maxn = 1e6+100;const int inf = 0x7ffffff;int month[] = {0,31,28,31,30,31,30,31,31,30,31,30,31};int main(void){ int m,d; scanf("%d %d",&m,&d); int ans = month[m]/7; int day = month[m] - ans*7; int tt = 7-d+1; if(tt<day) ans += 2; else { if(m==2 && tt==7); else ans += 1; } printf("%d\n",ans); return 0;}
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