Submission #2236233

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Source Code Expand

#include <iostream>

using namespace std;

int main(void){
	int n;

	cin >> n;

	static int d[1000001] = {};

	int a, b;

	for (int i = 0; i < n; i++){
		cin >> a >> b;

		d[a]++;
		d[b+1]--;
	}

	int max = 0;
	for (int i = 0; i < 1000001; i++){
		d[i+1] += d[i];
		if (max < d[i])
			max = d[i];
	}


	cout << max << endl;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:23:17: warning: iteration 1000000u invokes undefined behavior [-Waggressive-loop-optimizations]
   d[i+1] += d[i];
                 ^
./Main.cpp:22:20: note: containing loop
  for (int i = 0; i < 1000001; i++){
                    ^

Judge Result