My code for this problem :-
#include<iostream>
using namespace std;
#include<bits/stdc++.h>
int main()
{
int t ; cin>>t ;
for(int i=0;i<t;i++)
{
string str ; cin>>str ;
int curr=0; int ans=0 ;
for(int j=0;j<str.length();j++)
{ //cout<<"j is "<<j<<" "<<str[j]<<endl;
curr=0;
if(str[j]=='a')
curr=1;
for(int k=j+1;k<str.length();k++)
{
if(curr==0&&str[k]=='a')
curr=1;
else if(curr==1&&str[k]=='m')
curr=2;
else if(curr==2&&str[k]=='a')
curr=3;
else if(curr==3&&str[k]=='n')
curr=4;
else if(str[k]=='a')
curr=1;
else
curr=0;
if(curr==4) {ans+=str.length()-k;break;};
//cout<<"j is "<<j<<" "<<"k is "<<str[k]<<endl;
//cout<<"curr is "<<curr<<endl;
}
//cout<<"ans is "<<ans<<endl;
}
cout<<ans<<endl;
}
}
Did you check if the variable ans overflows?