#include<stdio.h> #include<stdlib.h> //快速幂算法,数论二分 long long powermod(int a,int b, int c) //不用longlong就报错,题目中那个取值范围不就在2的31次方内 { long long t; if(b==0) return 1%c; if(b==1) return a%c; t=powermod(a,b/2,c);//递归调用,采用二分递归算法,,注意这里n/2会带来奇偶性问题 t=t*t%c;…
作为菜鸟一枚,对子串和的代码完全就是硬算 的..结果是TLE #include<stdio.h> int jh(int x,int y,int num[],int sum[]); int idea[1000][1000]={0}; int main() { int num[1001]; int sum[1001]; int n,m,k=0; int x,y,z; int max=0; scanf("%d",&n); while(n--){ scanf("%…
Description There is a rectangular room, covered with square tiles. Each tile is colored either red or black. A man is standing on a black tile. From a tile, he can move to one of four adjacent tiles. But he can't move on red tiles, he can move only…
#include <iostream> #include<cstring> #include<cstdio> #include<cmath> const int maxn = 301; const int INF = (1<<31)-1; int w[maxn][maxn]; int lx[maxn],ly[maxn]; //顶标 int linky[maxn]; int visx[maxn],visy[maxn]; int slack[maxn…
Uncle Tom's Inherited Land* Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 1869 Accepted Submission(s): 777 Special Judge Problem Description Your old uncle Tom inherited a piece of land fr…
地址:http://acm.nyist.net/JudgeOnline/problem.php?pid=102 //a^b mod c=(a mod c)^b mod c很容易设计出一个基于二分的递归算法. #include<stdio.h> #include<stdlib.h> //快速幂算法,数论二分 long long powermod(int a,int b, int c) //不用longlong就报错,题目中那个取值范围不就在2的31次方内 { long long t;…
