Submission #365216

#	Time	Username	Problem	Language	Result	Execution time	Memory
365216		jazzup	Just Long Neckties (JOI20_ho_t1)	C++17	100 / 100	181 ms	6276 KiB

ho_t1

#include<cstdio>
#include<algorithm>

using namespace std;

int a[200010],aa[200010],b[200010],dp1[200010],dp2[200010];

int main(){

	int n;
	scanf("%d",&n);
	for(int i=0;i<=n;i++){
		scanf("%d",&aa[i]);
		a[i]=aa[i];
	}
	sort(a,a+n+1);
	for(int i=0;i<n;i++){
		scanf("%d",&b[i]);
	}
	sort(b,b+n);

	dp1[0]=max(a[0]-b[0],0);

	for(int i=1;i<n;i++){
		dp1[i]=max(dp1[i-1],max(a[i]-b[i],0));
	}

	dp2[n-1]=max(a[n]-b[n-1],0);

	for(int i=n-2;i>=0;i--){
		dp2[i]=max(dp2[i+1],max(a[i+1]-b[i],0));
	}

	for(int i=0;i<=n;i++){
		int *p=lower_bound(a,a+n+1,aa[i]);
		int x=p-a;
		printf("%d ",max(dp1[x-1],dp2[x]));
	}

	// for(int i=0;i<n;i++){
	// 	printf("%d ",dp1[i]);
	// }

	// printf("\n");
	// for(int i=0;i<n;i++){
	// 	printf("%d ",dp2[i]);
	// }
	return 0;
}

Compilation message (stderr)

ho_t1.cpp: In function 'int main()':
ho_t1.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
ho_t1.cpp:14:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   14 |   scanf("%d",&aa[i]);
      |   ~~~~~^~~~~~~~~~~~~
ho_t1.cpp:19:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |   scanf("%d",&b[i]);
      |   ~~~~~^~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 8 / 8
• Subtask 3: 91 / 91