ошибка оформления

#include <iostream>
#include <vector>
#include <string>
#include <cmath>
#include <algorithm>
#include <map>
#include <set>
#include <iterator>

#define int long long

using namespace std;

signed main() {
    int n, m, k;
    cin >> n >> m >> k;
    vector<set<int>> v(m);
    for (int i = 0; i < k; i++) {
        string command;
        cin >> command;
        if (command == "ADD") {
            int e, s;
            cin >> e >> s;
            v[s].insert(e);
            continue;
        }
        if (command == "DELETE") {
            int e, s;
            cin >> e >> s;
            v[s].erase(v[s].find(e));
            continue;
        }
        if (command == "CLEAR") {
            int s;
            cin >> s;
            v[s].clear();
            continue;
        }
        if (command == "LISTSET") {
            int s;
            cin >> s;
            bool is_exist = false;
            set<int>::iterator it = v[s].begin();
            for (; it != v[s].end(); it++) {
                is_exist = true;
                cout << *it << " ";
            }
            if (is_exist == false) {
                cout << -1 << '\n';
            }
            else {
                cout << '\n';
            }
            continue;
        }
        if (command == "LISTSETSOF") {
            int e;
            cin >> e;
            bool is_exist = false;
            for (int i = 0; i < m; i++) {
                if (v[i].find(e) != v[i].end()) {
                    is_exist = true;
                    cout << i << " ";
                }
            }
            if (is_exist == false) {
                cout << -1 << '\n';
            }
            else {
                cout << '\n';
            }
        }
    }
}



или

#include <algorithm>
#include <cmath>
#include <iostream>
#include <iterator>
#include <map>
#include <set>
#include <string>
#include <vector>

#define int long long

using namespace std;

signed main()
{
    int n, m, k;
    cin >> n >> m >> k;
    vector<set<int>> v(m);
    for (int i = 0; i < k; i++) {
        string command;
        cin >> command;
        if (command == "ADD") {
            int e, s;
            cin >> e >> s;
            v[s].insert(e);
            continue;
        }
        if (command == "DELETE") {
            int e, s;
            cin >> e >> s;
            v[s].erase(v[s].find(e));
            continue;
        }
        if (command == "CLEAR") {
            int s;
            cin >> s;
            v[s].clear();
            continue;
        }
        if (command == "LISTSET") {
            int s;
            cin >> s;
            bool is_exist = false;
            set<int>::iterator it = v[s].begin();
            for (; it != v[s].end(); it++) {
                is_exist = true;
                cout << *it << " ";
            }
            if (is_exist == false) {
                cout << -1 << '\n';
            } else {
                cout << '\n';
            }
            continue;
        }
        if (command == "LISTSETSOF") {
            int e;
            cin >> e;
            bool is_exist = false;
            for (int i = 0; i < m; i++) {
                if (v[i].find(e) != v[i].end()) {
                    is_exist = true;
                    cout << i << " ";
                }
            }
            if (is_exist == false) {
                cout << -1 << '\n';
            } else {
                cout << '\n';
            }
        }
    }
}