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codecstasy

Inserting substing to a string

Nov 21st, 2020
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C++ 0.42 KB | None | 0 0
  1. #include <iostream>
  2. #include <cstring>
  3. using namespace std;
  4.  
  5. int main() {
  6.     string str,sub,ans;
  7.     cin >> str >> sub;
  8.     int ix;
  9.     cin >> ix;
  10.     int len1=str.size(),len2=sub.size();
  11.     for(int i=0 ; i<ix ; i++)
  12.         ans[i]=str[i];
  13.     for(int i=ix ; i<len2+ix ; i++) {
  14.         ans[i]=sub[i];
  15.     }
  16.     for(int i=ix+len2 ; i<len1+len2 ; i++) {
  17.         ans[i]=str[i-len2];
  18.     }
  19.     cout << ans;
  20. }
  21.  
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