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codecstasy

Substring find

Nov 21st, 2020
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C++ 0.52 KB | None | 0 0
  1. #include <iostream>
  2. #include <cstring>
  3. #include <stdbool.h>
  4. using namespace std;
  5.  
  6. int main() {
  7.     string str,sub;
  8.     cin >> str;
  9.     cin >> sub;
  10.     int len1 = str.size();
  11.     int len2 = sub.size();
  12.     for(int i=0 ; i<len1-len2 ; i++) {
  13.         bool flag=0;
  14.         for(int j=0 ; j<len2 ; j++) {
  15.             if(str[i+j]!=sub[j]) {
  16.                 flag = 1;
  17.                 break;
  18.             }
  19.         }
  20.         if(flag==0) {
  21.             cout << i << endl;
  22.             break;
  23.         }
  24.     }
  25.     return 0;
  26. }
  27.  
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