NYOJ 5-Binary String Matching
2013-07-17 18:39
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题目链接
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
样例输出
写这题的时候还不会strstr函数,现在看看strstr好像也能做吧,反正是个很水的题:
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
写这题的时候还不会strstr函数,现在看看strstr好像也能做吧,反正是个很水的题:
#include<stdio.h> int main() { int num , i , j , flag ; char str[11] , str1[1001]; scanf("%d" , &num); while(num--) { scanf("%s\n%s" , str , str1); for(i = 0 , flag = 0; str1[i] != 0 ; i ++) { if(str[0] == str1[i]) { for(j = 1 ; str[j] != 0 && str1[i + j] != 0 ; j++) { if(str[j] != str1[i + j]) break; } if(str[j] == 0) flag++; } } printf("%d\n" , flag); } return 0; }
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