Submission #3020010


Source Code Expand

#include<bits/stdc++.h>
using namespace std;

const int S=(1<<20)+5;
char buf[S],*H,*T;
inline char Get()
{
	if(H==T) T=(H=buf)+fread(buf,1,S,stdin);
	if(H==T) return -1;return *H++;
}
inline int read()
{
	int x=0;char c=Get();
	while(!isdigit(c)) c=Get();
	while(isdigit(c)) x=x*10+c-'0',c=Get();
	return x;
}

const int N=200010;
struct Type
{
	int l,r;
	friend bool operator < (const Type &a,const Type &b){return a.l<b.l||a.l==b.l&&a.r>b.r;}
} a[N];
int n,m;
int c[N];

int main()
{
	n=read();m=read();
	for(int i=1;i<=n;i++) a[i].l=read(),a[i].r=read();
	sort(a+1,a+1+n);
	int L=0,R=m+1,cnt=0;
	for(int i=1;i<=n;i++)
		if(a[i].l>L&&L<m) L++;
		else c[++cnt]=a[i].r;
	sort(c+1,c+1+cnt);
	for(int i=cnt;i>=1;i--)
	{
		if(R-L==1) break;
		if(c[i]<R) R--;
	}
	printf("%d\n",n-(L+m-R+1));
	return 0;
}

Submission Info

Submission Time
Task F - Exhausted?
User Ebola
Language C++ (GCC 5.4.1)
Score 1000
Code Size 845 Byte
Status AC
Exec Time 31 ms
Memory 3584 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1000 / 1000
Status
AC × 4
AC × 48
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt, s4.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, s1.txt, s2.txt, s3.txt, s4.txt
Case Name Status Exec Time Memory
01.txt AC 24 ms 2944 KB
02.txt AC 13 ms 2176 KB
03.txt AC 25 ms 3072 KB
04.txt AC 25 ms 3072 KB
05.txt AC 2 ms 384 KB
06.txt AC 18 ms 2432 KB
07.txt AC 31 ms 3328 KB
08.txt AC 25 ms 3072 KB
09.txt AC 28 ms 3200 KB
10.txt AC 6 ms 1280 KB
11.txt AC 30 ms 3584 KB
12.txt AC 22 ms 2944 KB
13.txt AC 30 ms 3584 KB
14.txt AC 30 ms 3584 KB
15.txt AC 30 ms 3584 KB
16.txt AC 13 ms 2432 KB
17.txt AC 22 ms 3200 KB
18.txt AC 22 ms 3200 KB
19.txt AC 20 ms 2944 KB
20.txt AC 22 ms 3200 KB
21.txt AC 5 ms 1152 KB
22.txt AC 22 ms 3200 KB
23.txt AC 4 ms 896 KB
24.txt AC 22 ms 3200 KB
25.txt AC 10 ms 3072 KB
26.txt AC 9 ms 2944 KB
27.txt AC 10 ms 3200 KB
28.txt AC 11 ms 3328 KB
29.txt AC 11 ms 2816 KB
30.txt AC 11 ms 2816 KB
31.txt AC 23 ms 3200 KB
32.txt AC 19 ms 2944 KB
33.txt AC 22 ms 3200 KB
34.txt AC 14 ms 2560 KB
35.txt AC 11 ms 2304 KB
36.txt AC 24 ms 3200 KB
37.txt AC 1 ms 256 KB
38.txt AC 1 ms 256 KB
39.txt AC 1 ms 256 KB
40.txt AC 1 ms 256 KB
41.txt AC 1 ms 256 KB
42.txt AC 1 ms 256 KB
43.txt AC 1 ms 256 KB
44.txt AC 1 ms 256 KB
s1.txt AC 1 ms 256 KB
s2.txt AC 1 ms 256 KB
s3.txt AC 1 ms 256 KB
s4.txt AC 1 ms 256 KB