Submission #78374

#	Time	Username	Problem	Language	Result	Execution time	Memory
78374		nxteru	Amusement Park (JOI17_amusement_park)	C++14	Compilation error	0 ms	0 KiB

Joi

#include "Joi.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define PB push_back
int nj,mj[60],parj[10005],wj[10005],kj,Sj[60],Oj[60],PAj;
ll anj[60];
bool Ej[60][60];
vector<int>gj[10005];
int findj(int x){
    if(x==parj[x])return x;
    return parj[x]=findj(parj[x]);
}
bool samej(int x,int y){return findj(x)==findj(y);}
void unitj(int x,int y){parj[findj(x)]=findj(y);}
void dfs1j(int v,int p){
    Oj[k]=v;
    wj[v]=kj++;
    if(p!=-1){
        Ej[wj[v]][wj[p]]=true;
        Ej[wj[p]][wj[v]]=true;
        Sj[wj[v]]++;
        Sj[wj[p]]++;
    }
    if(kj==60)return;
    for(int i=0;i<gj[v].size();i++){
        int u=gj[v][i];
        if(u!=p)dfs1j(u,v);
    }
}
void dfs2j(int v,int l,int p,int o[60],bool e[60][60],int s[60]){
    if(wj[v]!=-1){
        for(int i=0;i<gj[v].size();i++){
            int u=gj[v][i];
            if(u!=p){
                dfs2j(u,wj[v],v,o,e,s);
            }
        }
        return;
    }
    int r;
    for(int i=0;i<60;i++){
        if(s[i]==1&&o[i]!=p){
            r=i;
            break;
        }
    }
    for(int i=0;i<60;i++){
        e[r][i]=false;
        e[i][r]=false;
    }
    w[v]=r;
    o[r]=v;
    e[r][l]=true;
    e[l][r]=true;
    s[l]++;
    for(int i=0;i<gj[v].size();i++){
        int u=gj[v][i];
        if(u!=p){
            dfs2j(u,wj[v],v,o,e,s);
        }
    }
}
void Joi(int N,int M,int A[],int B[],ll X,int t){
    nj=N;
    for(int i=0;i<nj;i++){
        parj[i]=i;
        wj[i]=-1;
    }
    for(int i=0;i<M;i++){
        if(!samej(A[i],B[i])){
            gj[A[i]].PB(B[i]);
            gj[B[i]].PB(A[i]);
            unitj(A[i],B[i]);
        }
    }
    for(int i=0;i<60;i++)mj[i]=(X>>i)&1;
    dfs1j(0,-1);
    dfs2j(0,wj[0],-1,Oj,Ej,Sj);
    for(int i=0;i<nj;i++){
        MessageBoard(i,mj[wj[i]]); 
    }
}

Ioi

Compilation message (stderr)

Joi.cpp: In function 'void dfs1j(int, int)':
Joi.cpp:17:8: error: 'k' was not declared in this scope
     Oj[k]=v;
        ^
Joi.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<gj[v].size();i++){
                 ~^~~~~~~~~~~~~
Joi.cpp: In function 'void dfs2j(int, int, int, int*, bool (*)[60], int*)':
Joi.cpp:33:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i=0;i<gj[v].size();i++){
                     ~^~~~~~~~~~~~~
Joi.cpp:52:5: error: 'w' was not declared in this scope
     w[v]=r;
     ^
Joi.cpp:57:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<gj[v].size();i++){
                 ~^~~~~~~~~~~~~

/tmp/cc8VTWbi.o: In function `main':
grader_ioi.cpp:(.text.startup+0x36a): undefined reference to `Ioi(int, int, int*, int*, int, int, int)'
collect2: error: ld returned 1 exit status