1569A - Balanced Substring - CodeForces Solution

implementation *800

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Python Code: 

for _ in range(int(input())):
    n = int(input())
    s = input()
    for i in range(n-1):
        if s[i] != s[i+1]:
            print(i+1, i+2)
            break
    else:
            print("-1 -1")

C++ Code: 

#include<bits/stdc++.h>
#define ll long long
using namespace std;
#ifdef ONLINE_JUDGE
#define dbg(...)
#else
#define dbg(...) cerr << "[" << #__VA_ARGS__ << "]:", debug = true, dbg_out(__VA_ARGS__), debug = false
#endif
int main(){
    int t; cin>>t;
    while(t--){
        int n; cin>>n; string s; cin>>s; int f=0,k;
        for(int i=0;i<n-1;i++){
            if(s[i]+s[i+1]==195){
                f=1;k=i; break;
            }
        }
        if(f)
        cout<<k+1<<" "<<k+2<<"\n";
        else
        cout<<"-1 -1\n";
        
    }
}


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