Submission #778710

#	Time	Username	Problem	Language	Result	Execution time	Memory
778710		Ahmed57	Highway design (CEOI12_highway)	C++17	Compilation error	0 ms	0 KiB

highway

//#include "catdog.h"

#include <bits/stdc++.h>

using namespace std;
vector<int> adj[100001];
bool ss = 0;
void initialize(int N,vector<int> A,vector<int> B){
    if(N==1)ss = 1;
    for(int i = 0;i<N-1;i++){
        adj[A[i]].push_back(B[i]);
        adj[B[i]].push_back(A[i]);
    }
}
int R[100001],B[100001];
int col[100001];
void solve(int i,int pr){
    R[i] = 0;B[i] = 0;
    for(auto j:adj[i]){
        if(j==pr)continue;
        solve(j,i);
        R[i] += min(R[j],B[j]+1);
        B[i] += min(R[j]+1,B[j]);
    }
    if(col[i]==1){
        B[i] = 1e9;
    }if(col[i]==2){
        R[i] = 1e9;
    }
}
int cat(int v){
    if(ss)return 0;
    col[v] = 1;
    solve(1,0);
    return min(R[1],B[1]);
}int dog(int v){
    if(ss)return 0;
    col[v] = 2;
    solve(1,0);
    return min(R[1],B[1]);
}int neighbor(int v){
    if(ss)return 0;
    col[v] = 0;
    solve(1,0);
    return min(R[1],B[1]);
}/*
int main(){
    int N = 5;vector<int>A = {1,2,2,4};
    vector<int> BB = {2,3,4,5};
    initialize(N,A,BB);
    cout<<cat(3)<<endl;
    cout<<dog(5)<<endl;
    cout<<dog(1)<<endl;
    cout<<cat(2)<<endl;
    cout<<neighbor(2)<<endl;
}*/

Compilation message (stderr)

office.c: In function 'int isOnLine(int, int, int)':
office.c:85:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   85 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:88:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   88 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:92:17: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   92 |     _Fin(false, "Too many questions");
      |                 ^~~~~~~~~~~~~~~~~~~~
office.c:83:7: warning: unused variable 'i' [-Wunused-variable]
   83 |   int i;
      |       ^
office.c: In function 'void Answer(int, int, int, int)':
office.c:123:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  123 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:128:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  128 |       if( (-_Apa[na1]==_N-3) && (na2!=na1) && (nb2!=na1) ||
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:130:21: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  130 |          _Fin(true, "Correct");
      |                     ^~~~~~~~~
office.c:132:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  132 |          _Fin(false, "Wrong answer");
      |                      ^~~~~~~~~~~~~~
office.c:134:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  134 |       if( (-_Apa[na2]==_N-3) && (na1!=na2) && (nb1!=na2) ||
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:136:21: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  136 |          _Fin(true, "Correct");
      |                     ^~~~~~~~~
office.c:138:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  138 |          _Fin(false, "Wrong answer");
      |                      ^~~~~~~~~~~~~~
office.c:140:19: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  140 |       _Fin(false, "Wrong answer");
      |                   ^~~~~~~~~~~~~~
office.c:142:14: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  142 |   _Fin(true, "Correct");
      |              ^~~~~~~~~
office.c:120:27: warning: unused variable 'pont' [-Wunused-variable]
  120 |   int na1, nb1, na2, nb2, pont;
      |                           ^~~~
office.c: In function 'void _doInit()':
office.c:33:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     scanf("%d", &_N);
      |     ~~~~~^~~~~~~~~~~
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/crt1.o: in function `_start':
(.text+0x24): undefined reference to `main'
collect2: error: ld returned 1 exit status