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
代码实现:
#include<iostream>#include<string.h>using namespace std;int main(){ int n; char a[11],b[1002]; cin>>n; while(n--) { int sum=0,temp,i,j; cin>>a>>b; for(j=0;j<strlen(b);j++) { temp=1; //从每个字母开始比较 for(i=0;i<strlen(a);i++) { if(b[i+j]!=a[i]) temp=0; } sum+=temp; } cout<<sum<<endl; } return 0; }
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