Submission #670682

#	Time	Username	Problem	Language	Result	Execution time	Memory
670682		kojac	Cave (IOI13_cave)	C++17	Compilation error	0 ms	0 KiB

cave

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

using namespace std;

#define MAXN (int)(5e3+10)
using pii = pair<long long,long long>;
using ll = long long;



void exploreCave(int N){

    int s[N], ans[N], mark[N];

    for(int i = 0; i < N; i++){
        s[i] = 0;
        ans[i] = 0;
        mark[i] = false;
    }

    for(int i = 0; i < N; i++){
        int l = 0, r = N-1;

        bool aux = false;

        int x = tryCombination(s)
        if(x > i || x == -1){
            aux = true;
        }

        while(l <= r){
            int mid = (l+r)/2;

            if(l == r){
                mark[mid] = true;
                ans[mid] = i;
                if(aux) s[mid] = 0;
                else s[mid] = 1;

                break;
            }

            for(int j = l; j <= r; j++){
                if(mark[j])continue;
                if(j <= mid) s[j] = 1;
                else s[j] = 0;
            }

            int x = tryCombination(s);

            if(aux){
                if(x > i || x > -1){
                    l = mid+1;
                }else r = mid;
            }else{
                if(x > i || x == -1){
                    r = mid;
                }else l = mid+1;
            }
        }
    }

    answer(s, ans);
}

int main(){

    ios_base::sync_with_stdio(false);
    cout.tie(NULL);










    return 0;
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:28:9: error: expected ',' or ';' before 'if'
   28 |         if(x > i || x == -1){
      |         ^~
cave.cpp:27:13: warning: unused variable 'x' [-Wunused-variable]
   27 |         int x = tryCombination(s)
      |             ^