oj.uz

답안 #1008279

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1008279 2024-06-26T08:51:27 Z m5588ohammed Bootfall (IZhO17_bootfall) C++14
0 / 100
 1 ms 860 KB 
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*******************************************************************************/
#include <bits/stdc++.h>
using namespace std;
#define endl "\n"

int vis[50][1000];
int arr[50],skip=-1,t,flag=0;
int ans[1000],curr[1000];
int n;
void solve(int i,int sum){
    if(sum>(t+1)/2) return;
    if(vis[i][sum]==1) return;
    
    if(i==n){
        curr[((t-arr[skip])-sum)-sum]=1;
        return;
    }
    
    if(i!=skip) solve(i+1,sum+arr[i]);
    solve(i+1,sum);
    vis[i][sum]=1;
    return;
}
void check(int i,int sum){
    if(sum>(t+1)/2) return;
    if(vis[i][sum]==1) return ;
    
    if(i==n){
        if(t/2==sum) flag=1;
        return;
    }
    
    
    check(i+1,sum+arr[i]);
    check(i+1,sum);
    vis[i][sum]=1;
    return;
}
signed main()
{
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>arr[i];
        t+=arr[i];
    }
    
    if(t%2==0) check(0,0);
    if(flag==0){
        cout<<0<<endl;
        return 0;
    }
    
    skip=0;
    memset(vis,0,sizeof vis);
    solve(0,0);
    for(int i=1;i<=1000;i++) ans[i]=curr[i];
    for(int i=1;i<n;i++){
        skip=i;
        memset(vis,0,sizeof vis);
        memset(curr,0,sizeof curr);
        solve(0,0);
        for(int j=1;j<=1000;j++) ans[j]=min(ans[j],curr[j]);
        for(int j=1;j<=1000;j++) ans[j]=min(ans[j],curr[j]);
    }
    
    int siz=0;
    for(int j=1;j<=1000;j++) siz+=ans[j];
    cout<<siz<<endl;
    for(int j=1;j<=1000;j++) if(ans[j]==1) cout<<j<<" ";
    return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:63:43: warning: iteration 999 invokes undefined behavior [-Waggressive-loop-optimizations]
   63 |     for(int i=1;i<=1000;i++) ans[i]=curr[i];
      |                                     ~~~~~~^
bootfall.cpp:63:18: note: within this loop
   63 |     for(int i=1;i<=1000;i++) ans[i]=curr[i];
      |                 ~^~~~~~
bootfall.cpp:69:40: warning: iteration 999 invokes undefined behavior [-Waggressive-loop-optimizations]
   69 |         for(int j=1;j<=1000;j++) ans[j]=min(ans[j],curr[j]);
      |                                  ~~~~~~^~~~~~~~~~~~~~~~~~~~
bootfall.cpp:69:22: note: within this loop
   69 |         for(int j=1;j<=1000;j++) ans[j]=min(ans[j],curr[j]);
      |                     ~^~~~~~
bootfall.cpp:70:40: warning: iteration 999 invokes undefined behavior [-Waggressive-loop-optimizations]
   70 |         for(int j=1;j<=1000;j++) ans[j]=min(ans[j],curr[j]);
      |                                  ~~~~~~^~~~~~~~~~~~~~~~~~~~
bootfall.cpp:70:22: note: within this loop
   70 |         for(int j=1;j<=1000;j++) ans[j]=min(ans[j],curr[j]);
      |                     ~^~~~~~
bootfall.cpp:74:40: warning: iteration 999 invokes undefined behavior [-Waggressive-loop-optimizations]
   74 |     for(int j=1;j<=1000;j++) siz+=ans[j];
      |                                   ~~~~~^
bootfall.cpp:74:18: note: within this loop
   74 |     for(int j=1;j<=1000;j++) siz+=ans[j];
      |                 ~^~~~~~
bootfall.cpp:76:38: warning: iteration 999 invokes undefined behavior [-Waggressive-loop-optimizations]
   76 |     for(int j=1;j<=1000;j++) if(ans[j]==1) cout<<j<<" ";
      |                                 ~~~~~^
bootfall.cpp:76:18: note: within this loop
   76 |     for(int j=1;j<=1000;j++) if(ans[j]==1) cout<<j<<" ";
      |                 ~^~~~~~
bootfall.cpp:63:36: warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)' forming offset [4000, 4003] is out of the bounds [0, 4000] of object 'ans' with type 'int [1000]' [-Warray-bounds]
   63 |     for(int i=1;i<=1000;i++) ans[i]=curr[i];
      |                              ~~~~~~^~~~~~~~
bootfall.cpp:15:5: note: 'ans' declared here
   15 | int ans[1000],curr[1000];
      |     ^~~

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Runtime error 1 ms 860 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Runtime error 1 ms 860 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Runtime error 1 ms 860 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Runtime error 1 ms 860 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Runtime error 1 ms 860 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Runtime error 1 ms 860 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -