nyoj_5 Binary String Matching
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Binary String Matching
时间限制:3000 ms | 内存限制:65535 KB
难度:3
- 描述
- Given two strings A and B, whose alphabet consist only ‘0’ and ‘1’. Your task is only to tell how many times does A appear as a substring of B? For example, the text string B is ‘1001110110’ while the pattern string A is ‘11’, you should output 3, because the pattern A appeared at the posit
- 输入
- The first line consist only one integer N, indicates N cases follows. In each case, there are two lines, the first line gives the string A, length (A) <= 10, and the second line gives the string B, length (B) <= 1000. And it is guaranteed that B is always longer than A.
- 输出
- For each case, output a single line consist a single integer, tells how many times do B appears as a substring of A.
- 样例输入
31110011101101011100100100100011010110100010101011
- 样例输出
303
分析:
不会KMP(o(╯□╰)o),好在数据比较水,只能暴力了。。。
代码:
#include<stdio.h>#include<string.h>int main(){int n;scanf("%d",&n);while(n--){char a[11],b[1001];scanf("%s",a);scanf("%s",b);int i,j,sum=0;for(j=0;j<strlen(b);j++){for(i=0;i<strlen(a);i++){if(b[j+i]!=a[i])break;}if(i==strlen(a))sum++;}printf("%d\n",sum);}return 0;}
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