oj.uz

답안 #896021

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
896021 2023-12-31T12:41:39 Z vjudge1 Ice Hockey World Championship (CEOI15_bobek) C++17
70 / 100
 713 ms 651192 KB 
#include <bits/stdc++.h>
using namespace std;

const long long maxn =41;
const long long maxs=1e6+20;
const long long mod=1e9+7;
const long long logn=25;

long long n,m;
long long x[maxn];
long long dp[maxn][maxs];

long long f(long long idx,long long s)
{
    if(idx==n)
    {
        if(s<=m)
        {
            return 1;
        }
        return 0;
    }
    if(dp[idx][s]!=-1)
    {
        return dp[idx][s];
    }
    long long rez=0;
    rez+=f(idx+1,s);
    if(s+x[idx]<=m)
    rez+=f(idx+1,s+x[idx]);
    return dp[idx][s]=rez;
}

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin>>n>>m;
    for(long long i=0;i<n;i++)
    {
        cin>>x[i];
    }
    if(n<=22)
    {
        long long ans=0;
        for(long long i=0;i<(1<<n);i++)
        {
            long long sum=0;
            for(long long bit=0;bit<n;bit++)
            {
                if(i&(1<<bit))
                {
                    sum+=x[bit];
                }
            }
            if(sum<=m)
            {
                ans++;
            }
        }
        cout<<ans<<endl;
    }
    else
    {
        memset(dp,-1,sizeof dp);
        cout<<f(0,0)<<endl;
    }
    return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 348 KB Output is correct
2 Correct 4 ms 348 KB Output is correct
3 Correct 8 ms 464 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 4 ms 348 KB Output is correct
6 Correct 64 ms 432 KB Output is correct
7 Correct 8 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 64 ms 348 KB Output is correct
2 Correct 16 ms 348 KB Output is correct
3 Correct 4 ms 348 KB Output is correct
4 Correct 4 ms 460 KB Output is correct
5 Correct 64 ms 344 KB Output is correct
6 Correct 8 ms 348 KB Output is correct
7 Correct 8 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 91 ms 321364 KB Output is correct
2 Correct 352 ms 321384 KB Output is correct
3 Correct 713 ms 321364 KB Output is correct
4 Correct 311 ms 321376 KB Output is correct
5 Correct 38 ms 321368 KB Output is correct
6 Correct 39 ms 321364 KB Output is correct
7 Correct 36 ms 321300 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 321364 KB Output is correct
2 Correct 99 ms 321364 KB Output is correct
3 Correct 41 ms 321376 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 36 ms 321368 KB Output is correct
6 Correct 53 ms 321360 KB Output is correct
7 Correct 38 ms 321364 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 292 ms 321376 KB Output is correct
2 Correct 151 ms 321348 KB Output is correct
3 Correct 128 ms 321380 KB Output is correct
4 Correct 16 ms 348 KB Output is correct
5 Correct 37 ms 321364 KB Output is correct
6 Correct 48 ms 321360 KB Output is correct
7 Correct 37 ms 321360 KB Output is correct

Subtask #8
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 332 ms 651112 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 304 ms 651192 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 291 ms 651144 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -