Submission #1126595

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126595		Halym2007	Sequence (BOI14_sequence)	C++17	0 / 100	3 ms	700 KiB

sequence

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define sz size()
#define ff first
#define ss second
#define pb push_back
#define pii pair <int, int>
#define dur exit(0)
#define dur1 return(0)
const int N = 2e5 + 5;
char a[N];
int main () {
	freopen ("input.txt", "r", stdin);
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int n;
	cin >> n;
	for (int i = 1; i <= n; ++i) {
		int x;
		cin >> x;
		a[i] = char(x + 48);
	}
	for (int i = 1; ; ++i) {
		int idx = 0, bol = 0;
		for (int j = i; j <= i + n - 1; ++j) {
			string jog = to_string(j);
			idx++;
			int ok = 0; 
			for (char k : jog) {
				if (k == a[idx]) {
					ok = 1;
					break;
				}
			}
			if (!ok) {
				bol = 1;
				break;
			}
		}
		if (!bol) {
			return cout << i, 0;
		}
	}
}

Compilation message (stderr)

sequence.cpp: In function 'int main()':
sequence.cpp:14:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         freopen ("input.txt", "r", stdin);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 33
• Subtask 3: 0 / 25
• Subtask 4: 0 / 33