codeforces/A_Balanced_Substring.cpp at master · dzuizz/codeforces · GitHub

E514 codeforces/A_Balanced_Substring.cpp at master · dzuizz/codeforces · GitHub

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#include <iostream>

using namespace std;

typedef long long ll;

int main(){

ll t;

cin >> t;

for(ll c=0;c<t;c++){

ll length, coor=-1;

string s;

cin >> length;

cin >> s;

for(ll i=0;i<length;i++){

if((s[i]=='a' && s[i+1]=='b') || (s[i]=='b' && s[i+1]=='a')){

coor = i;

break;

}

}

if(coor==-1) cout << "-1 -1\n";

else cout << coor+1 << " " << coor+2 << endl;

}

}

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