Lucky 7 in the Pocket
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                                Lucky 7 in the Pocket
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                                http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=4106
?題意:求大于等于n的最小可以被7整除不能被4整除的數(shù)
題解:預(yù)處理+二分
/* *@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 #define endl "\n" using namespace std; typedef long long ll; //typedef __int128 lll; const int N=100000+10; const int M=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,p,l,r,u,v; int ans,cnt,flag,temp,sum; int a[N]; char str; struct node{}; int main() { #ifdef DEBUGfreopen("input.in", "r", stdin);//freopen("output.out", "w", stdout); #endif//ios::sync_with_stdio(false);//cin.tie(0);//cout.tie(0);for(int i=1;i<1000;i++){if(i%7==0&&i%4!=0){a[++cnt]=i;}}//cout<<cnt<<endl;scanf("%d",&t);while(t--){scanf("%d",&n);cout<<a[lower_bound(a+1,a+cnt+1,n)-a]<<endl;}#ifdef DEBUGprintf("Time cost : %lf s\n",(double)clock()/CLOCKS_PER_SEC); #endif//cout << "Hello world!" << endl;return 0; }總結(jié)
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