Submission #1367733

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Source Code Expand

#include<iostream>
using namespace std;

int main() {
	int n;
	cin >> n;
	int a[100005], b[100005], ans[100005];
	for (int i = 0; i < n; i++) { cin >> a[i] >> b[i] ; }
	for(int i = 0;i <= 1000000;i++){
		for (int j = 0; j < n; j++) {
			if (a[j] <= i && i <= b[j]) {
				ans[i]++;
			}
	   }
	}
	int max = 0,X;
	for (int i = 0; i <= 1000000; i++) {
		if (ans[i] > max) { max = ans[i];
		                      X = i;
		}

	}
	cout << X << endl;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:18:12: warning: iteration 100005u invokes undefined behavior [-Waggressive-loop-optimizations]
   if (ans[i] > max) { max = ans[i];
            ^
./Main.cpp:17:20: note: containing loop
  for (int i = 0; i <= 1000000; i++) {
                    ^

Judge Result