Tulkki

input/code.cpp: In function 'void solve()':
input/code.cpp:50:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for(int i=0; i<commands.size(); i++) {
      |                  ~^~~~~~~~~~~~~~~~

#include <bits/stdc++.h>

 
#define Debug(x) cout << #x << ": " << (x) << "\n"
#define debug(x) cout << #x << ": " << (x) << ", "

using namespace std;

streamsize MAX_SIZE = 67000;

void solve() {
    string c;
    char X;
    vector<pair<int, int>> commands;
    while (cin >> c) {
        if (c[0]=='#') { // COMMENT
            cin.ignore(MAX_SIZE, '\n');
        }
        if (c[0] == 'C') { // CLEAR, code 0
            cin >> X;
            while (X == '#') {cin.ignore(MAX_SIZE, '\n');cin >> X;}
            commands.push_back({0, X-'A'});
        }
        if (c[0] == 'I') { // INCREASE, code 1
            cin >> X;
            while (X == '#') {cin.ignore(MAX_SIZE, '\n');cin >> X;}
            commands.push_back({1, X-'A'});
        }
        if (c[0] == 'P') { // PRINT, code 2
            cin >> X;
            while (X == '#') {cin.ignore(MAX_SIZE, '\n');cin >> X;}
            commands.push_back({2, X-'A'});
        }
        if (c[0] == 'R') { // REPEAT, code 3
            cin >> X;
            while (X == '#') {cin.ignore(MAX_SIZE, '\n');cin >> X;}
            cin.ignore(MAX_SIZE, '(');
            commands.push_back({3, X-'A'});
        }
        if (c[0] == ')') { // STOP REPEAT, code 4
            commands.push_back({4, 0});
        }
    }

    stack<pair<int, int>> repeat_counters; // repeat location, number of times.
    int var, op;
    pair<int, int> curr_repeat = {0,1};
    int memory[26] = {};

    for(int i=0; i<commands.size(); i++) {
        // Debug(i);
        // debug(commands[i].first);
        // debug(commands[i].second);
        // debug(curr_repeat.first);
        // Debug(curr_repeat.second);
        // for (auto j : memory) cout << j;
        // cout << "\n\n";

        op = commands[i].first;
        var = commands[i].second;
        if (op == 4) {
            if (curr_repeat.second == 1) { // if this is the last loop-through
                if (!repeat_counters.empty()) {
                    curr_repeat=repeat_counters.top();
                    repeat_counters.pop();
                }
            } else {
                curr_repeat.second--;
                i = curr_repeat.first;
            }
        }
        if (op == 3) {
            if (curr_repeat.second > 1) { // remember the ongoing loop before stepping into the next
                repeat_counters.push(curr_repeat);
            }
            curr_repeat = {i, memory[var]};
        }
        if (op == 2) {
            cout << memory[var] << " ";
        }
        if (op == 1) {
            memory[var]++;
        }
        if (op == 0) {
            memory[var]=0;
        }
    }
    cout << "\n";
}

int main() {
    solve();
}

Test 1 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 6 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 7 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 8 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 9 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 10 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 11 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 12 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 13 (public)

Group: 3

Verdict: ACCEPTED

Test 14 (public)

Group: 3

Verdict: ACCEPTED

Test 15 (public)

Group: 3

Verdict: ACCEPTED

Test 16 (public)

Group: 3

Verdict: ACCEPTED

Test 17 (public)

Group: 3

Verdict: WRONG ANSWER

Test 18 (public)

Group: 3

Verdict: TIME LIMIT EXCEEDED