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Binary String Matching
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
3 11 1001110110 101 110010010010001 1010 110100010101011
- 样例输出
3 0 3
#include<stdio.h> #include<string.h> int main(void) { int n; char a[100],b[1000]; int i,j,k; int count; scanf("%d",&n); getchar(); while(n--) { count=0; scanf("%s%s",a,b); for(i=0;i<strlen(b);i++) { if(b[i]==a[0]) { for(j=1;j<strlen(a);j++) { if(b[i+j]!=a[j]) { break; } } if(j==strlen(a)) count++; } } printf("%d\n",count); } return 0; }
Binary String Matching
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