筱玛的快乐
https://ac.nowcoder.com/acm/contest/342/A
題解:
/* *@Author: STZG *@Language: C++ */ #include <bits/stdc++.h> #include<iostream> #include<algorithm> #include<cstdlib> #include<cstring> #include<cstdio> #include<string> #include<vector> #include<bitset> #include<queue> #include<deque> #include<stack> #include<cmath> #include<list> #include<map> #include<set> //#define DEBUG #define RI register int using namespace std; typedef long long ll; //typedef __int128 lll; const int N=100000+10; const int MOD=1e9+7; const double PI = acos(-1.0); const double EXP = 1E-8; const int INF = 0x3f3f3f3f; int t,n,m,k,q; int ans,cnt,flag,temp; int s[][2]={1,10,2,20,3,30,10,1,11,11,12,21}; struct node{int y;int m;int d; }a[N]; char str; bool prime(int x){if(x==1)return 0;int tmp=sqrt(x);for(int i=2;i<=tmp;i++)if(x%i==0)return 0;return 1; } int main() { #ifdef DEBUGfreopen("input.in", "r", stdin);//freopen("output.out", "w", stdout); #endif//for(int i=2000;i<=9999;i++){if(prime(i))for(int j=0;j<6;j++){a[++cnt].y=i;a[cnt].m=s[j][0];a[cnt].d=s[j][1];}}scanf("%d",&t);while(t--){scanf("%d",&n);printf("%d-",a[n].y);if(a[n].m<10)printf("0");printf("%d-",a[n].m);if(a[n].d<10)printf("0");printf("%d\n",a[n].d);}//cout << "Hello world!" << endl;return 0; }?
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