NY--5 -- Binary String Matching [水] [STL] [string类]
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Binary String Matching
- 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
Code:
完全的水题,为了熟悉各种STL容器, 用一下~\(≧▽≦)/~啦啦啦
#include<stdio.h>#include<string>#include<iostream>using namespace std;int main(){string s1,s2;char ss[1005];int t,pos,cnt;scanf("%d",&t);while(t--){scanf("%s",ss);s1 = ss;scanf("%s",ss);s2 = ss;pos = cnt = 0;while(pos<(s2.length()-s1.length()+1)){int loc = s2.find(s1,pos);if(loc==string::npos) break;cnt++; pos=loc+1;}printf("%d\n",cnt);}return 0;}
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