My issue
why is this code giving the runtime error even though i am considering all the constraints, and the only for loop is within the constraint given in the question.
My code
#include <bits/stdc++.h>
using namespace std;
int main() {
// your code goes here
int t;
cin >> t;
while(t--)
{
int n;
cin >> n;
string s;
cin >>s;
string k = s;
map<string,int> arr;
int count = 0;
arr[k]=0;
// count++;
char temp;
for(int i=0; i<n-2; i++)
{
k = s;
temp = k[i];
k[i] = k[i+1];
k[i+1] = k[i+2];
k[i+2] = temp;
if(arr[k] == 0)
{
arr[k]++;
count++;
}
}
cout << count << endl;
}
}
Problem Link: Triangular Swaps Practice Coding Problem - CodeChef