CCC 1998 S1 Censor

    1#include <bits/stdc++.h>
    2using namespace std;
    3typedef long long ll;
    4const int INF = 0x3f3f3f3f; //❄️
    5int main() {
    6    ios::sync_with_stdio(0); cin.tie(0); 
    7    int n; cin >> n;
    8    cin.ignore();
    9    for (int t = 0; t < n; t++) {
    10        string s; getline(cin, s);
    11        vector<string> v;
    12        string a = "";
    13        for (int j = 0; j < s.size(); j++) {
    14            char c = s[j];
    15            if (c == ' ') {
    16                v.push_back(a);
    17                a = "";
    18            } else {
    19                a += c;
    20            }
    21        }
    22        v.push_back(a);
    23        for (int i = 0; i < v.size(); i++) {
    24            string ss = v[i];
    25            if (ss.size() == 4) {
    26                for(int j = 0; j < 4; j++) {
    27                    cout << "*";
    28                }
    29            } else {
    30                for (char c : ss) cout << c;
    31            }
    32            cout << (i == v.size() - 1 ? "\n" : " ");
    33        }
    34    }
    35    return 0;
    36}