Submission #3310956


Source Code Expand

#include<cstdio>
#include<algorithm>
using namespace std;
int n,k,a[55];
int main()
{
	scanf("%d%d",&n,&k);for(int i=1;i<=n;++i) scanf("%d",&a[i]);
	sort(a+1,a+1+n);int cnt=0;
	for(int i=n;i;--i) {cnt+=a[i];if(cnt>=k) {printf("%d\n",n-i+1);return 0;}}
	printf("-1\n");
	return 0;
}

Submission Info

Submission Time
Task A - Credits
User luogu_bot3
Language C++ (GCC 5.4.1)
Score 100
Code Size 294 Byte
Status AC
Exec Time 1 ms
Memory 128 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:7:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&k);for(int i=1;i<=n;++i) scanf("%d",&a[i]);
                     ^
./Main.cpp:7:61: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&k);for(int i=1;i<=n;++i) scanf("%d",&a[i]);
                                                             ^

Judge Result

Set Name All
Score / Max Score 100 / 100
Status
AC × 18
Set Name Test Cases
All corner_10, corner_11, corner_12, corner_13, max_14, random_00, random_01, random_02, random_03, random_04, random_05, random_06, random_07, random_08, random_09, sample_00, sample_01, sample_02
Case Name Status Exec Time Memory
corner_10 AC 1 ms 128 KB
corner_11 AC 0 ms 128 KB
corner_12 AC 0 ms 128 KB
corner_13 AC 1 ms 128 KB
max_14 AC 1 ms 128 KB
random_00 AC 1 ms 128 KB
random_01 AC 1 ms 128 KB
random_02 AC 1 ms 128 KB
random_03 AC 1 ms 128 KB
random_04 AC 1 ms 128 KB
random_05 AC 1 ms 128 KB
random_06 AC 1 ms 128 KB
random_07 AC 1 ms 128 KB
random_08 AC 1 ms 128 KB
random_09 AC 1 ms 128 KB
sample_00 AC 1 ms 128 KB
sample_01 AC 1 ms 128 KB
sample_02 AC 1 ms 128 KB