Submission #1730689


Source Code Expand

#include <iostream>
#include <fstream>
using namespace std;
const int nmax=5025;
int dp[2][nmax][nmax];
int a[nmax],l[nmax],r[nmax];
int n,i,j,k,ind,n1,n2,ans;
bool check()
{
    ind=1;
    for(j=n1;j>=1;j--)
    {
        while(ind<=n2&&l[j]+r[ind]<k) ind++;
        ind--;
        if(l[j]+r[ind]>=k-a[i])
            return 1;
    }
    return 0;
}
int main()
{
    freopen("data.in","r",stdin);
    cin>>n>>k;
    dp[0][0][0]=1;
    for(i=1;i<=n;i++)
    {
        cin>>a[i];
        for(j=0;j<=k;j++)
            dp[0][i][j]=dp[0][i-1][j];
        for(j=k-a[i];j>=0;j--)
            dp[0][i][j+a[i]]|=dp[0][i][j];
    }
    dp[1][n+1][0]=1;
    for(i=n;i>=1;i--)
    {
        for(j=0;j<=k;j++)
            dp[1][i][j]=dp[1][i+1][j];
        for(j=k-a[i];j>=0;j--)
            dp[1][i][j+a[i]]|=dp[1][i][j];
    }
    for(i=1;i<=n;i++)
    {
        n1=n2=0;
        for(j=0;j<=k;j++)
            if(dp[0][i-1][j])
               l[++n1]=j;
        for(j=0;j<=k;j++)
            if(dp[1][i+1][j])
               r[++n2]=j;
        if(!check()) ++ans;
    }
    cout<<ans;
    return 0;
}

Submission Info

Submission Time
Task D - No Need
User Bodo
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1146 Byte
Status WA
Exec Time 2 ms
Memory 2304 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:22:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
     freopen("data.in","r",stdin);
                                 ^

Judge Result

Set Name Sample Subtask All
Score / Max Score 0 / 0 0 / 300 0 / 300
Status
WA × 3
AC × 16
WA × 10
AC × 31
WA × 20
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 WA 2 ms 2304 KB
0_001.txt WA 2 ms 2304 KB
0_002.txt WA 2 ms 2304 KB
1_003.txt AC 2 ms 2304 KB
1_004.txt AC 2 ms 2304 KB
1_005.txt AC 2 ms 2304 KB
1_006.txt WA 2 ms 2304 KB
1_007.txt AC 2 ms 2304 KB
1_008.txt AC 2 ms 2304 KB
1_009.txt WA 2 ms 2304 KB
1_010.txt AC 2 ms 2304 KB
1_011.txt AC 2 ms 2304 KB
1_012.txt AC 2 ms 2304 KB
1_013.txt AC 2 ms 2304 KB
1_014.txt AC 2 ms 2304 KB
1_015.txt AC 2 ms 2304 KB
1_016.txt WA 2 ms 2304 KB
1_017.txt AC 2 ms 2304 KB
1_018.txt WA 2 ms 2304 KB
1_019.txt WA 1 ms 2304 KB
1_020.txt AC 2 ms 2304 KB
1_021.txt AC 2 ms 2304 KB
1_022.txt AC 2 ms 2304 KB
1_023.txt AC 2 ms 2304 KB
1_024.txt WA 1 ms 2304 KB
1_025.txt WA 2 ms 2304 KB
2_026.txt AC 2 ms 2304 KB
2_027.txt WA 2 ms 2304 KB
2_028.txt AC 2 ms 2304 KB
2_029.txt AC 2 ms 2304 KB
2_030.txt WA 1 ms 2304 KB
2_031.txt AC 2 ms 2304 KB
2_032.txt AC 2 ms 2304 KB
2_033.txt AC 2 ms 2304 KB
2_034.txt AC 2 ms 2304 KB
2_035.txt AC 2 ms 2304 KB
2_036.txt AC 2 ms 2304 KB
2_037.txt WA 2 ms 2304 KB
2_038.txt AC 1 ms 2304 KB
2_039.txt WA 2 ms 2304 KB
2_040.txt WA 2 ms 2304 KB
2_041.txt AC 2 ms 2304 KB
2_042.txt AC 2 ms 2304 KB
2_043.txt AC 2 ms 2304 KB
2_044.txt AC 2 ms 2304 KB
2_045.txt AC 2 ms 2304 KB
2_046.txt WA 2 ms 2304 KB
2_047.txt WA 2 ms 2304 KB
2_048.txt WA 2 ms 2304 KB
2_049.txt WA 2 ms 2304 KB
2_050.txt WA 2 ms 2304 KB