fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int p = -1;
  4. bool isSubsequence(const string& A, const string& B) {
  5.     int n = A.size();
  6.     int m = B.size();
  7.     int i = 0, j = 0, count = 0;
  8.  
  9.     while (i < m && j < n) {
  10.         if (A[j] == B[i]) {
  11.             if(count==0){
  12.                 p = j;
  13.             }
  14.  
  15.             i++;
  16.             j++;
  17.             count++;
  18.         } else {
  19.             j++;
  20.         }
  21.     }
  22.  
  23.     return count == m;
  24. }
  25.  
  26. int main() {
  27.  
  28.     int t;
  29.     cin>>t;
  30.     while(t--){
  31.     string a,b;
  32.     cin>>a;
  33.     cin>>b;
  34.     int answer = -1;
  35.     for(int i=1;i<b.size();i++){
  36.  
  37.         for(char c='a';c<='z';c++){
  38.             string r = b ;
  39.             r[i] = c; 
  40.      p = -1;
  41.      if (isSubsequence(a, r)) {//p!=-1
  42.          answer = p+1;
  43.      } 
  44.     }
  45.  
  46.     }
  47.     cout<<answer;
  48.     cout<<"\n";
  49.  
  50.     }
  51.     return 0;
  52. }
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
copy 
2
abcbc
cba
lhs
rhs
stdout
copy 
3
-1
https://ideone.com/vfH2va
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!