Poistot

input/code.cpp: In function 'int main()':
input/code.cpp:7:15: warning: unused variable 'j' [-Wunused-variable]
    7 |     int n, i, j, k;
      |               ^
input/code.cpp:7:18: warning: unused variable 'k' [-Wunused-variable]
    7 |     int n, i, j, k;
      |                  ^

#include<bits/stdc++.h>
#define F0R(i, n) for (i = 0; i < n; ++i)
#define FOR(i, l, r) for (i = l; i < r; ++i)
using namespace std;

int main() {
    int n, i, j, k;
    cin >> n;

    vector<int> x(n, 0);
    vector<string> rounds;
    F0R (i, n) {
        cin >> x[i];
    }

    int curr;
    string s;
    bool flag = true;
    while (flag) {
        flag = false;
        s = "";
        curr = 0;
        F0R (i, n) {
            if (x[i] != 0) {
                curr = x[i];
                s += to_string(x[i]) + " ";
                x[i] = 0;
                flag = true;
                break;
            }
        }
        if (!flag) break;

        bool flag2 = true;
        while (flag2) {
            flag2 = false;
            FOR (i, i+1, n) {
                if (x[i] > curr) {
                    curr = x[i];
                    s += to_string(x[i]) + " ";
                    x[i] = 0;
                    flag2 = true;
                    break;
                }
            }
        }

        rounds.push_back(s);
    }

    n = rounds.size();
    cout << n << "\n";
    F0R (i, n) {
        cout << rounds[i] << "\n";
    }
}

Test 1

Group: 1, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 3

Verdict: ACCEPTED

Test 4

Group: 1, 3

Verdict: ACCEPTED

Test 5

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

Test 6

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

Test 7

Group: 3

Verdict: ACCEPTED

Test 8

Group: 3

Verdict: ACCEPTED

Test 9

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 10

Group: 3

Verdict: TIME LIMIT EXCEEDED