Submission #1443055


Source Code Expand

#include <iostream>
#include <cstring>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <string>
#include <cmath>
#include <queue> 
using namespace std;
int n,k;
const int N=5001;
int x[N],tmp[N];
bool f[N][N];
bool check(int d)
{
    if(x[d]>=k) return true; 
    int i,j,cnt=0;
    memset(tmp,0,sizeof(tmp));
    memset(f,false,sizeof(f));
    for(i=1;i<=n;i++)
        if(i!=d)
            tmp[++cnt]=x[i];
    f[1][0]=true;
    if(tmp[1]<=k)   f[1][tmp[1]]=true;
    for(i=2;i<=n-1;i++)
        for(j=0;j<=k;j++)
            if(j-tmp[i]>=0)
                f[i][j]=f[i-1][j-tmp[i]];
            else
                f[i][j]=f[i-1][j];
    for(i=k-x[d];i<k;i++)
        if(f[n-1][i])
            return true;
    return false;
}
int main()
{
    int i,j,l,r;
    cin>>n>>k;
    for(i=1;i<=n;i++)
        scanf("%d",&x[i]);
    sort(x+1,x+n+1);
    l=1,r=n;
    while(l<=r)
    {
        int mid=(l+r)/2;
        if(!check(mid)) l=mid+1;
        else    r=mid-1;
    } 
    cout<<r;
   /* cout<<check(1);
    //cout<<f[5][16]<<' '<<f[5][19];
    for(i=1;i<=n;i++)
        for(j=0;j<=k;j++)
            if(f[i][j])
                cout<<i<<' '<<j<<endl;*/
    return 0;
}

Submission Info

Submission Time
Task D - No Need
User shanyuqiang
Language C++14 (GCC 5.4.1)
Score 600
Code Size 1249 Byte
Status AC
Exec Time 248 ms
Memory 24704 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:41:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x[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 10 ms 24704 KB
0_001.txt AC 13 ms 24704 KB
0_002.txt AC 13 ms 24704 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 14 ms 24704 KB
1_007.txt AC 12 ms 24704 KB
1_008.txt AC 23 ms 24704 KB
1_009.txt AC 26 ms 24704 KB
1_010.txt AC 1 ms 256 KB
1_011.txt AC 1 ms 256 KB
1_012.txt AC 1 ms 256 KB
1_013.txt AC 1 ms 256 KB
1_014.txt AC 1 ms 256 KB
1_015.txt AC 23 ms 24704 KB
1_016.txt AC 14 ms 24704 KB
1_017.txt AC 13 ms 24704 KB
1_018.txt AC 14 ms 24704 KB
1_019.txt AC 13 ms 24704 KB
1_020.txt AC 24 ms 24704 KB
1_021.txt AC 24 ms 24704 KB
1_022.txt AC 21 ms 24704 KB
1_023.txt AC 20 ms 24704 KB
1_024.txt AC 15 ms 24704 KB
1_025.txt AC 20 ms 24704 KB
2_026.txt AC 1 ms 256 KB
2_027.txt AC 15 ms 24704 KB
2_028.txt AC 15 ms 24704 KB
2_029.txt AC 229 ms 24704 KB
2_030.txt AC 248 ms 24704 KB
2_031.txt AC 2 ms 256 KB
2_032.txt AC 2 ms 256 KB
2_033.txt AC 2 ms 256 KB
2_034.txt AC 2 ms 256 KB
2_035.txt AC 2 ms 256 KB
2_036.txt AC 230 ms 24704 KB
2_037.txt AC 15 ms 24704 KB
2_038.txt AC 13 ms 24704 KB
2_039.txt AC 14 ms 24704 KB
2_040.txt AC 53 ms 24704 KB
2_041.txt AC 137 ms 24704 KB
2_042.txt AC 190 ms 24704 KB
2_043.txt AC 114 ms 24704 KB
2_044.txt AC 136 ms 24704 KB
2_045.txt AC 77 ms 24704 KB
2_046.txt AC 98 ms 24704 KB
2_047.txt AC 50 ms 24704 KB
2_048.txt AC 152 ms 24704 KB
2_049.txt AC 115 ms 24704 KB
2_050.txt AC 134 ms 24704 KB