View difference between Paste ID: 7vK94xmR and MMvBbLS6

 #include<bits/stdc++.h>
 
 using namespace std;
 
 int main() {
     ios_base::sync_with_stdio(0);
     cin.tie(0); cout.tie(0);
     freopen("input.txt", "r", stdin);
     freopen("output.txt", "w", stdout);
     int n, ch1 = 0;
     cin >> n;
-    string c;
+
     map <string, bool> check;
-    vector <string> s(n);
+    vector <string> s(n), t(n);
     for (int i = 0; i < n; i++) {
         cin >> t[i];
         if (t[i][1] != '?') {
             q.insert(t[i]);
-        cin >> c;
+            check[t[i]] = 1;
-        if (c[1] != '?') {
+
-            q.insert(c);
+            s[i] = t[i];
             continue;
-            check[c] = 1;
+
-            s[i] = c;
+
     if (q.size() != ch1) {
-        } else {
+
-            int j = 0;
+
-            for (j = 0; j < 100; j++) {
+
-                c[1] = (j / 10) + '0';
+
-                c[2] = (j % 10) + '0';
+        string c = t[i];
-                if (check[c] == 0) {
+        if (c[1] != '?') continue;
-                    check[c] = 1;
+        int flag = 0;
-                    break;
+        for (int j = 0; j < 100; j++) {
-                }
+            c[1] = (j / 10) + '0';
             c[2] = (j % 10) + '0';
-            if (check[c] == 1 && j == 100) {
+            if (check[c] == 0) {
-                cout << "NO";
+                flag = 1;
-                return 0;
+                break;
             }
         }
         if (flag) check[c] = 1;
         else {
             cout << "NO";
             return 0;
         }
         s[i] = c;
     }
     cout << "YES" << endl;
     for (int i = 0; i < n; i++) {
         cout << s[i] << endl;
     }
 }