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Hidden StringTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 1434 Accepted Submission(s): 514
Problem Description
Today is the 1st anniversary of BestCoder. Soda, the contest manager, gets a string
1. 2. The concatenation of
Input
There are multiple test cases. The first line of input contains an integer
There‘s a line containing a string
Output
For each test case, output "YES" (without the quotes) if Soda can find such thress substrings, otherwise output "NO" (without the quotes).
Sample Input
Sample Output
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#include <cstdio> #include <cstring> #include <algorithm> using namespace std; int f[10]; char ss[] = {"anniversary"}; char str[210], str1[210], str2[210]; void getfail(char *P) { int l = strlen(P); f[0] = f[1] = 0; for(int i = 1; i < l; i++) { int j = f[i]; while(j && P[i] != P[j]) j = f[j]; f[i+1] = P[i] == P[j] ? j + 1 : 0; } } int Find(char *T, char *P)//在字符串T中 查找字符串P { int l1 = strlen(T); int l2 = strlen(P); int j = 0; for(int i = 0; i < l1; i++) { while(j && T[i] != P[j]) j = f[j]; if(T[i] == P[j]) j++; if(j >= l2) return i+1;//返回最后匹配位置 } return -1; } int main() { int t; scanf("%d", &t); while(t--) { scanf("%s", str); bool flag = false; char s[10]; int p, pos; for(int i = 1; i <= 9; i++)//第一分割点 { if(flag) break; for(int j = i; j <= 9; j++)//第二分割点 { //截取第一个字符串 p = 0; for(int k = 0; k < i; k++) s[p++] = ss[k]; s[p] = '\0'; getfail(s);//求失配函数 if(Find(str, s) != -1)//查找 { pos = Find(str, s); p = 0; int len = strlen(str); for(int k = pos; k < len; k++)//重构文本串 str1[p++] = str[k]; str1[p] = '\0'; } else continue; //截取第二个字符串 p = 0; for(int k = i; k <= j; k++) s[p++] = ss[k]; s[p] = '\0'; getfail(s); if(Find(str1, s) != -1) { pos = Find(str1, s); p = 0; int len = strlen(str1); for(int k = pos; k < len; k++)//重构文本串 str2[p++] = str1[k]; str2[p] = '\0'; } else continue; //截取第三个 p = 0; for(int k = j+1; k < 11; k++) s[p++] = ss[k]; s[p] = '\0'; getfail(s); if(Find(str2, s) != -1) { flag = true;//第三个成功就 ok了 break; } } } if(flag) printf("YES\n"); else printf("NO\n"); } return 0; }
Arithmetic SequenceTime Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 870 Accepted Submission(s): 384
Problem Description
A sequence
Teacher Mai has a sequence
Input
There are multiple test cases.
For each test case, the first line contains three numbers
Output
For each test case, print the answer.
Sample Input
Sample Output
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hdoj 5311 Hidden String 【KMP + 暴力】
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原文地址:http://blog.csdn.net/chenzhenyu123456/article/details/47838461