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Submission #759070

# Submission time Handle Problem Language Result Execution time Memory
759070 2023-06-15T17:59:19 Z alexander707070 Mechanical Doll (IOI18_doll) C++14
0 / 100
 58 ms 10684 KB 
#include<bits/stdc++.h>
#include "doll.h"
#define MAXN 200007
using namespace std;

int m,power,n;
int a[MAXN],s;
int lt[MAXN],rt[MAXN];
vector<int> from,to,c;

int rev(int x){
    int res=0;
    for(int i=1;i<power;i*=2){
        res*=2; res+=x%2; 
        x/=2;
    }
    return res;
}

void build(int v,int l,int r,int num){
    if(l+1==r){
        num*=2;
        if(rev(num)<n)lt[v]=a[rev(num)];
        else if(rev(num)==power-1)lt[v]=0;
        else lt[v]=-1;

        num++;
        if(rev(num)<n)rt[v]=a[rev(num)];
        else if(rev(num)==power-1)rt[v]=0;
        else rt[v]=-1;
    }else{
        int tt=(l+r)/2;
        build(2*v,l,tt,2*num);
        build(2*v+1,tt+1,r,2*num+1);

        lt[v]=-2*v; rt[v]=-2*v-1;
    }
}

void create_circuit(int M, vector<int> A){
    m=M; n=int(A.size());

    for(int i=0;i<n;i++){
        a[i]=A[i];
    }
    
    power=1;
    while(power<n+1)power*=2;
    build(1,0,power-1,0);

    for(int i=0;i<=m;i++)c.push_back(-1);

    for(int i=1;i<=power-1;i++){
        if(lt[i]>0)n--;
        if(rt[i]>0)n--;
        from.push_back(lt[i]);
        to.push_back(rt[i]);
    }

    if(n!=0)cout<<1/0;

    answer(c,from,to);
}

/*
int main(){
     create_circuit(4, {1, 2, 1,3,2,4,3,1,2});
}
*/

Compilation message

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:60:20: warning: division by zero [-Wdiv-by-zero]
   60 |     if(n!=0)cout<<1/0;
      |                   ~^~

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 308 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 18.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 212 KB Output is partially correct
2 Incorrect 58 ms 10684 KB wrong motion
3 Halted 0 ms 0 KB -

Subtask #6
0.0 / 56.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 212 KB Output is partially correct
2 Incorrect 58 ms 10684 KB wrong motion
3 Halted 0 ms 0 KB -