Submission #788758

#	Time	Username	Problem	Language	Result	Execution time	Memory
788758		ooscode	Examination (JOI19_examination)	C++14	100 / 100	1970 ms	2140 KiB

examination

#include<iostream>
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast,unroll-loops")
using namespace std;

int ans;
int a[100000] , b[100000];
int x , y , z , n , q;

int main() {
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	scanf("%d %d" , &n , &q);
	for(int i = 0 ; i < n ; i++)
		scanf("%d %d" , &a[i] , &b[i]);
	while(q--) {
		ans = 0;
		scanf("%d %d %d" , &x , &y , &z);
		for(int i = 0 ; i < n ; i++)
			ans += (x <= a[i] & y <= b[i] & z <= a[i]+b[i]);
		cout << ans << "\n";
	}
	return 0;
}

Compilation message (stderr)

examination.cpp: In function 'int main()':
examination.cpp:20:14: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   20 |    ans += (x <= a[i] & y <= b[i] & z <= a[i]+b[i]);
      |            ~~^~~~~~~
examination.cpp:20:38: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   20 |    ans += (x <= a[i] & y <= b[i] & z <= a[i]+b[i]);
      |                                    ~~^~~~~~~~~~~~
examination.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  scanf("%d %d" , &n , &q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
examination.cpp:15:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |   scanf("%d %d" , &a[i] , &b[i]);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |   scanf("%d %d %d" , &x , &y , &z);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 20 / 20
• Subtask 3: 21 / 21
• Subtask 4: 57 / 57