Submission #462317

#	Time	Username	Problem	Language	Result	Execution time	Memory
462317		bigo	Exam (eJOI20_exam)	C++14	12 / 100	89 ms	1348 KiB

exam

#include <bits/stdc++.h>
using namespace std;
#define ll long long
typedef pair<int, int> pii;
int main() {
	int n;
	cin >> n;
	vector<int>a(n), b(n);
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	for (int i = 0; i < n; i++) {
		cin >> b[i];
	}
	vector<int>vec;
	for (int i = 0; i < n; i++) {
		if (a[i] == b[0])
			vec.push_back(i);

	}
	int ans = 0;
	vector<bool>ok(n, false);
	for (int i = 0; i < vec.size(); i++) {
		if (!ok[vec[i]]) {
			for (int j = vec[i]; j >= 0; j--) {
				if (a[j] <= b[0])
					ok[j] = true;
				else
					break;
			}
			for (int j = vec[i]; j <n; j++) {
				if (a[j] <= b[0])
					ok[j] = true;
				else
					break;
			}
		}
	}
	for (int i = 0; i < n; i++)
		if (ok[i])
			ans++;
	cout << ans;
}

Compilation message (stderr)

exam.cpp: In function 'int main()':
exam.cpp:23:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |  for (int i = 0; i < vec.size(); i++) {
      |                  ~~^~~~~~~~~~~~

• Subtask 1: 0 / 14
• Subtask 2: 12 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 23
• Subtask 5: 0 / 16
• Subtask 6: 0 / 22