Submission #918344

#	Time	Username	Problem	Language	Result	Execution time	Memory
918344		Ferid20072020	Easter Eggs (info1cup17_eastereggs)	C++14	Compilation error	0 ms	0 KiB

eastereggs

#include <bits/stdc++.h>
#include "grader.h"

using namespace std;

int color[2e5+5];
vector<vector<int>> g(2e5+5);
vector<int> List;

void DFS(int node){
    color[node] = 1;
    List.push_back(node);
    for(auto to : g[node]){
        if(color[to] == 0){
            DFS(to);
        }
    }
}

int findEgg (int N, vector < pair < int, int > > bridges)
{
    List.clear();
    for(int i=0 ; i<2e5 + 5 ; i++){
        g[i].clear();
    }

    for(int i=0 ; i<bridges.size() ; i++){
        int u = bridges[i].first;
        int v = bridges[i].second;
        g[u].push_back(v);
        g[v].push_back(u);
    }

    DFS(1);


    int l = 0 , r = N - 1;
    while(l < r){
        int mid = (l + r) / 2;
        vector<int> c;
        for(int i=l ; i<=mid ; i++){
            c.push_back(List[i]);
        }
        int ask = query(c);
        if(ask == 1){
            r = mid;
        }
        else{
            l = mid + 1;
        }
    }
    return List[l];
}

Compilation message (stderr)

eastereggs.cpp:6:14: error: conversion from 'double' to 'long unsigned int' in a converted constant expression
    6 | int color[2e5+5];
      |           ~~~^~
eastereggs.cpp:6:14: error: could not convert '(2.0e+5 + (double)5)' from 'double' to 'long unsigned int'
eastereggs.cpp:6:14: error: size of array 'color' has non-integral type 'double'
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:27:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i=0 ; i<bridges.size() ; i++){
      |                   ~^~~~~~~~~~~~~~~