Submission #97385

#	Time	Username	Problem	Language	Result	Execution time	Memory
97385		Bruteforceman	Exhibition (JOI19_ho_t2)	C++11	100 / 100	95 ms	1572 KiB

joi2019_ho_t2

#include "bits/stdc++.h"
using namespace std;
typedef pair <int, int> pii;
pii a[100010];
int c[100010];
int opt[100010];

int main(int argc, char const *argv[])
{
	int n, m;
	scanf("%d %d", &n, &m);
	for(int i = 1; i <= n; i++) {
		scanf("%d %d", &a[i].second, &a[i].first);
	}
	for(int i = 1; i <= m; i++) {
		scanf("%d", &c[i]);
	}
	sort(a + 1, a + n + 1);
	sort(c + 1, c + m + 1);
	int cur = n;
	int ans = 0;
	for(int i = m; i >= 1; i--) {
		while(cur > 0 && a[cur].second > c[i]) {
			--cur;
		}
		if(cur > 0) {
			++ans;
			--cur;
		}
	}
	printf("%d\n", ans);
	return 0;
}

Compilation message (stderr)

joi2019_ho_t3.cpp: In function 'int main(int, const char**)':
joi2019_ho_t3.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &a[i].second, &a[i].first);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &c[i]);
   ~~~~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50