oj.uz

Submission #216132

# Submission time Handle Problem Language Result Execution time Memory
216132 2020-03-26T18:29:04 Z MKopchev Kitchen (BOI19_kitchen) C++14
100 / 100
 17 ms 768 KB 
#include<bits/stdc++.h>
using namespace std;
const int nmax=3e2+42,inf=1e9;

void no()
{
    printf("Impossible");
    exit(0);
}

int take_min(int a,int b)
{
    if(a==-1)return b;
    return min(a,b);
}
int filled[nmax*nmax];

int n,m,k;

int main()
{
    scanf("%i%i%i",&n,&m,&k);

    int sum=0,dish;
    for(int i=1;i<=n;i++)
    {
        scanf("%i",&dish);
        if(dish<k)no();
        sum=sum+dish;
    }

    for(int i=1;i<nmax*nmax;i++)filled[i]=-inf;

    int chef,ret=-1,total=0;
    for(int i=1;i<=m;i++)
    {
        scanf("%i",&chef);
        total=total+chef;

        for(int bought=total;bought>=chef;bought--)
        {
            int can_buy=min(n,chef);
            filled[bought]=max(filled[bought],filled[bought-chef]+can_buy);
        }

        //for(int bought=0;bought<=total;bought++)cout<<filled[bought]<<" ";cout<<endl;
    }

    if(total<sum)no();

    //cout<<"sum= "<<sum<<endl;

    for(int i=sum;i<=total;i++)
        if(filled[i]>=k*n)ret=take_min(ret,i-sum);

    if(ret==-1)no();
    printf("%i\n",ret);
    return 0;
}

Compilation message

kitchen.cpp: In function 'int main()':
kitchen.cpp:22:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i%i%i",&n,&m,&k);
     ~~~~~^~~~~~~~~~~~~~~~~~~
kitchen.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i",&dish);
         ~~~~~^~~~~~~~~~~~
kitchen.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i",&chef);
         ~~~~~^~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 768 KB Output is correct
2 Correct 5 ms 768 KB Output is correct
3 Correct 5 ms 768 KB Output is correct
4 Correct 5 ms 768 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 768 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 768 KB Output is correct
2 Correct 5 ms 768 KB Output is correct
3 Correct 5 ms 768 KB Output is correct
4 Correct 5 ms 768 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 768 KB Output is correct
9 Correct 5 ms 768 KB Output is correct
10 Correct 5 ms 768 KB Output is correct
11 Correct 5 ms 768 KB Output is correct
12 Correct 5 ms 768 KB Output is correct
13 Correct 5 ms 768 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 768 KB Output is correct
2 Correct 11 ms 768 KB Output is correct
3 Correct 12 ms 768 KB Output is correct
4 Correct 17 ms 768 KB Output is correct
5 Correct 16 ms 768 KB Output is correct
6 Correct 10 ms 768 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 768 KB Output is correct
2 Correct 5 ms 768 KB Output is correct
3 Correct 5 ms 768 KB Output is correct
4 Correct 5 ms 768 KB Output is correct
5 Correct 5 ms 256 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 768 KB Output is correct
2 Correct 5 ms 768 KB Output is correct
3 Correct 5 ms 768 KB Output is correct
4 Correct 5 ms 768 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 768 KB Output is correct
9 Correct 5 ms 768 KB Output is correct
10 Correct 5 ms 768 KB Output is correct
11 Correct 5 ms 768 KB Output is correct
12 Correct 5 ms 768 KB Output is correct
13 Correct 5 ms 768 KB Output is correct
14 Correct 13 ms 768 KB Output is correct
15 Correct 11 ms 768 KB Output is correct
16 Correct 12 ms 768 KB Output is correct
17 Correct 17 ms 768 KB Output is correct
18 Correct 16 ms 768 KB Output is correct
19 Correct 10 ms 768 KB Output is correct
20 Correct 5 ms 768 KB Output is correct
21 Correct 5 ms 768 KB Output is correct
22 Correct 5 ms 768 KB Output is correct
23 Correct 5 ms 768 KB Output is correct
24 Correct 5 ms 256 KB Output is correct
25 Correct 11 ms 768 KB Output is correct
26 Correct 12 ms 768 KB Output is correct
27 Correct 7 ms 768 KB Output is correct
28 Correct 11 ms 768 KB Output is correct
29 Correct 13 ms 768 KB Output is correct
30 Correct 17 ms 768 KB Output is correct