Codeforces Round 863 (Div. 3) 1811A. Insert Digit Solution

 

Problem Link  : https://codeforces.com/contest/1811/problem/A

Solution in C++:

1. /// Author : AH_Tonmoy
2. #include <bits/stdc++.h>
3. using namespace std;
4. void solve() {
5. int n, d;
6. cin >> n >> d;
7. string s;
8. cin >> s;
9. for (int i = 0; i < n; ++i) {
10. if (s[i] - '0' >= d) {
11. cout << s[i];
12. } else {
13. cout << d;
14. for (int j = i; j < n; ++j) {
15. cout << s[j];
16. }
17. cout << endl;
18. return;
19. }
20. }
21. cout << d << endl;
22. }
23. int32_t main() {
24. ios_base::sync_with_stdio(0);
25. cin.tie(0);
26. int t;
27. cin >> t;
28. while (t--) {
29. solve();
30. }
31. return 0;
32. }