Submission #1730790


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 600
Code Size 1146 Byte
Status AC
Exec Time 240 ms
Memory 197120 KB

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 2 ms 2304 KB
0_001.txt AC 2 ms 2304 KB
0_002.txt AC 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 AC 2 ms 2432 KB
1_007.txt AC 2 ms 2432 KB
1_008.txt AC 8 ms 17152 KB
1_009.txt AC 8 ms 17152 KB
1_010.txt AC 7 ms 17152 KB
1_011.txt AC 6 ms 17024 KB
1_012.txt AC 7 ms 17152 KB
1_013.txt AC 6 ms 17024 KB
1_014.txt AC 6 ms 17024 KB
1_015.txt AC 7 ms 17152 KB
1_016.txt AC 2 ms 2304 KB
1_017.txt AC 2 ms 2304 KB
1_018.txt AC 2 ms 2304 KB
1_019.txt AC 8 ms 17152 KB
1_020.txt AC 6 ms 17024 KB
1_021.txt AC 7 ms 17152 KB
1_022.txt AC 4 ms 8960 KB
1_023.txt AC 3 ms 6784 KB
1_024.txt AC 7 ms 17152 KB
1_025.txt AC 7 ms 17152 KB
2_026.txt AC 2 ms 2304 KB
2_027.txt AC 2 ms 2432 KB
2_028.txt AC 2 ms 2432 KB
2_029.txt AC 215 ms 197120 KB
2_030.txt AC 240 ms 197120 KB
2_031.txt AC 132 ms 196992 KB
2_032.txt AC 63 ms 195328 KB
2_033.txt AC 130 ms 196992 KB
2_034.txt AC 61 ms 195328 KB
2_035.txt AC 62 ms 195328 KB
2_036.txt AC 178 ms 197120 KB
2_037.txt AC 2 ms 2560 KB
2_038.txt AC 2 ms 2560 KB
2_039.txt AC 2 ms 2560 KB
2_040.txt AC 127 ms 197120 KB
2_041.txt AC 123 ms 196480 KB
2_042.txt AC 156 ms 197120 KB
2_043.txt AC 96 ms 123008 KB
2_044.txt AC 117 ms 169856 KB
2_045.txt AC 83 ms 161024 KB
2_046.txt AC 128 ms 196352 KB
2_047.txt AC 164 ms 196992 KB
2_048.txt AC 192 ms 197120 KB
2_049.txt AC 183 ms 197120 KB
2_050.txt AC 177 ms 197120 KB