Submission #3019240

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Source Code Expand

#include<bits/stdc++.h>
#define M 200005
using namespace std;

struct node{
	int l,r; 
	friend bool operator <(node a,node b){
		if(a.l!=b.l) return a.l<b.l;
		return a.r>b.r;
	}
}a[M];
priority_queue<node> q;
int n,m;
int ll=0,rr=0;
int main(){
	int n,m; scanf("%d%d",&n,&m);
	printf("%d\n",max(0,n-m));
	/*for(int i=1;i<=n;i++) scanf("%d%d",&a[i].l,&a[i].r);
	sort(a+1,a+n+1);
	for(int i=1;i<=n;i++) if(a[i].l>ll&&ll<m) ll++; else q.push(a[i]);
	while(!q.empty()){
		if(rr-ll=
		*/
	}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  int n,m; scanf("%d%d",&n,&m);
                              ^

Judge Result