HIIT remains

input/code.cpp: In function 'int main()':
input/code.cpp:39:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j=0; j<letters.size(); j++) {
                                      ^
input/code.cpp:45:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j=0; j<hoot.size(); j++) {
                                   ^
input/code.cpp:46:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int k=0; k<teet.size(); k++) {
                                       ^

#include <iostream>
#include <map>
#include <vector>
 
using namespace std;
 
//ios_base::sync_with_stdio(0);
//cin.tie(0);
 
 
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t;
    string data;
 
    int vastaus;
    int iit;
 
    int tmp;
    cin >> t;
    map<char,int> m;
    m['H']=1; m['I']=2; m['T']=3;    
    
    for (int i=0;i<t;i++) {
        vector<int> letters;
        vector<int> summa;
        vector<int> hoot;
        vector<int> teet;
 
        vastaus=0;
        cin >> data;
        int n=data.size();
        for (int j=0; j<n; ++j){
            if (m[data[j]] != 0) letters.push_back(m[data[j]]);
        }
 
        iit=0;
        for (int j=0; j<letters.size(); j++) {
            if (letters[j]==1) hoot.push_back(j);
            else if (letters[j]==3) teet.push_back(j);
            else if (letters[j]==2) iit+=1;
            summa.push_back(iit);   
        }
        for (int j=0; j<hoot.size(); j++) {
            for (int k=0; k<teet.size(); k++) {
                if (teet[k]>hoot[j]) {
                   tmp = summa[teet[k]] - summa[hoot[j]];
                   vastaus += (tmp*(tmp-1))/2;
                }
            }
        }
        cout << vastaus << "\n";
    }
 
 
 
}
 

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: TIME LIMIT EXCEEDED

Test 4

Verdict: TIME LIMIT EXCEEDED