Hello there! I am new to this forum and spoj, but I already was able to solve a couple of problems. Here is my code for the mentioned task. Would anybody help, please, to find a mistake?

#include <bits/stdc++.h>

    using namespace std;

int main() {
    int t, n, a, r, suma, sumr, sum;
    cin >> t;
    for (int p = 0; p < t; p++) {
        cin >> n;
        struct Stats {
            int time;
            string team;
            char pr;
            char st;
        } data[n];
        set<string> set;
        for (int i = 0; i < n; i++) {
            cin >> data[i].time >> data[i].team >> data[i].pr >> data[i].st;
        }
        for (char ch = 'A'; ch <= 'I'; ch++) {
            for (int i = 0; i < n; i++) {
                if (data[i].pr == ch) {
                    set.insert(data[i].team);
                }
            }
            suma = sumr = sum = 0;
            for (auto it = set.begin(); it != set.end(); ++it) {
                a = r = 0;
                for (int i = 0; i < n; i++) {
                    if (data[i].pr == ch) {
                        if (data[i].team == *it && data[i].st == 'R') r++;
                        else if (data[i].team == *it && data[i].st == 'A') {
                            a = 1;
                            sum += data[i].time;
                            break;
                        }
                    }
                }
                suma += a;
                sumr += r;
            }
            if (suma == 0) cout << ch << " " << suma << "\n";
            else {
                cout.precision(2);
                cout << ch << " " << suma << " " << fixed << (double)(suma + sumr) / suma << " " << (double) sum / suma << "\n";
            }
            set.clear();
        }
    }
    system("pause");
    return 0;
}

Thank you for your answer, simes. I get this for your test:

A 2 3.00 125.00
B 3 1.00 666.67
C 3 2.67 800.00
D 2 1.00 1400.00
E 1 1.00 1707.00
F 1 1.00 1801.00
G 0
H 0
I 0

But what’s wrong? Only for a case A I regard the following sequence:

10 aaaaa A R [v] r
80 aaaaa A R [v] r
100 aaaaa A A [v] a
100 bbbb A R [v] r
150 bbbb A A [v] a
1000 ccc A R [v] r
1010 aaaaa A A [NOT INCLUDED IN STATS]

So, I get 4 rejected and 2 accepted. The average is 6 / 2 = 3.00. Why do you propose 2.50?

P.S. And yes, I left system(“pause”) when submitted.

Thank you for this hint. I truly didn’t take that possibility into account. Try to fix the problem and write you back with a new solution if it still fails.

Thank you very much, simes. I fixed this tiny bug and was able to pass all the tests:)