Submission #1348021


Source Code Expand

#include<cstdio>
#include<vector>


using namespace std;
using ll=long long;
using vi=vector<int>;
using vvi=vector<vi>;
using vll=vector<ll>;
using vvll=vector<vll>;


int main(void)
{
	int n, k;

	while(scanf("%d%d", &n, &k)==2)
	{
		vi a(n);
		vvi f(n+1), b(n+1);

		for(int i=0;i<n;i++) scanf("%d", &a[i]);

		for(int i=0;i<=n;i++)
		{
			f[i].resize(k);
			b[i].resize(k);
			b[i][0]=f[i][0]=1;
		}

		for(int i=0;i<n;i++)
		{
			f[i+1]=f[i];
			for(int j=0;j+a[i]<k;j++)
			{
				if(!f[i][j]) continue;
				f[i+1][j+a[i]]=1;
			}
		}

		for(int i=n;i>0;i--)
		{
			b[i-1]=b[i];
			for(int j=0;j+a[i-1]<k;j++)
			{
				if(!b[i][j]) continue;
				b[i-1][j+a[i-1]]=1;
			}
		}

		for(int i=0;i<=n;i++)
		{
			for(int j=0;j<k;j++)
			{
				if(b[i][j]) b[i][j]=j;
				else b[i][j]=b[i][j-1];
			}
		}

		int ans=0;
		for(int i=0;i<n;i++)
		{
			for(int j=0;j<k;j++)
			{
				if(!f[i][j]) continue;

				if(j+b[i+1][k-1-j]+a[i]>=k)
				{
					ans++;
					break;
				}
			}
		}
/*
printf("----- f -----\n");
for(auto e:f)
{
	for(auto ee:e) printf("%2d ", ee);
	printf("\n");
}
printf("----- b -----\n");
for(auto e:b)
{
	for(auto ee:e) printf("%2d ", ee);
	printf("\n");
}
*/
		printf("%d\n", n-ans);
	}

	return 0;
}

Submission Info

Submission Time
Task D - No Need
User myanta
Language C++14 (GCC 5.4.1)
Score 600
Code Size 1309 Byte
Status AC
Exec Time 221 ms
Memory 195968 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:22:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   for(int i=0;i<n;i++) scanf("%d", &a[i]);
                                          ^

Judge Result

Set Name Sample Subtask All
Score / Max Score 0 / 0 300 / 300 300 / 300
Status
AC × 3
AC × 26
AC × 51
Set Name Test Cases
Sample 0_000.txt, 0_001.txt, 0_002.txt
Subtask 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt
All 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 2_026.txt, 2_027.txt, 2_028.txt, 2_029.txt, 2_030.txt, 2_031.txt, 2_032.txt, 2_033.txt, 2_034.txt, 2_035.txt, 2_036.txt, 2_037.txt, 2_038.txt, 2_039.txt, 2_040.txt, 2_041.txt, 2_042.txt, 2_043.txt, 2_044.txt, 2_045.txt, 2_046.txt, 2_047.txt, 2_048.txt, 2_049.txt, 2_050.txt
Case Name Status Exec Time Memory
0_000.txt AC 1 ms 256 KB
0_001.txt AC 1 ms 256 KB
0_002.txt AC 1 ms 256 KB
1_003.txt AC 1 ms 256 KB
1_004.txt AC 1 ms 256 KB
1_005.txt AC 1 ms 256 KB
1_006.txt AC 1 ms 256 KB
1_007.txt AC 1 ms 256 KB
1_008.txt AC 3 ms 1536 KB
1_009.txt AC 3 ms 1536 KB
1_010.txt AC 2 ms 1536 KB
1_011.txt AC 1 ms 256 KB
1_012.txt AC 2 ms 1536 KB
1_013.txt AC 1 ms 256 KB
1_014.txt AC 1 ms 256 KB
1_015.txt AC 2 ms 1536 KB
1_016.txt AC 1 ms 256 KB
1_017.txt AC 1 ms 256 KB
1_018.txt AC 1 ms 256 KB
1_019.txt AC 2 ms 1024 KB
1_020.txt AC 1 ms 256 KB
1_021.txt AC 2 ms 896 KB
1_022.txt AC 1 ms 512 KB
1_023.txt AC 1 ms 256 KB
1_024.txt AC 2 ms 896 KB
1_025.txt AC 2 ms 1152 KB
2_026.txt AC 1 ms 256 KB
2_027.txt AC 1 ms 384 KB
2_028.txt AC 1 ms 384 KB
2_029.txt AC 212 ms 195968 KB
2_030.txt AC 221 ms 195968 KB
2_031.txt AC 167 ms 195968 KB
2_032.txt AC 3 ms 768 KB
2_033.txt AC 167 ms 195968 KB
2_034.txt AC 2 ms 768 KB
2_035.txt AC 2 ms 768 KB
2_036.txt AC 168 ms 195968 KB
2_037.txt AC 2 ms 640 KB
2_038.txt AC 2 ms 640 KB
2_039.txt AC 2 ms 640 KB
2_040.txt AC 133 ms 160640 KB
2_041.txt AC 89 ms 102528 KB
2_042.txt AC 135 ms 156800 KB
2_043.txt AC 82 ms 95232 KB
2_044.txt AC 90 ms 104448 KB
2_045.txt AC 47 ms 52224 KB
2_046.txt AC 96 ms 97280 KB
2_047.txt AC 143 ms 148480 KB
2_048.txt AC 184 ms 192128 KB
2_049.txt AC 178 ms 192128 KB
2_050.txt AC 174 ms 192128 KB