Submission #713041

#	Time	Username	Problem	Language	Result	Execution time	Memory
713041		lam	Cave (IOI13_cave)	C++14	Compilation error	0 ms	0 KiB

cave

#include <bits/stdc++.h>
#include "cave.h"
using namespace std;
int n;
int dau[],s[],d[];
vector <int> tmp;
void exploreCave(int N) {
    /* ... */
    n=N;
    for (int i=0; i<n; i++) dau[i]=0;
    for (int it=0; it<n; it++)
    {
        int temp = tryCombination(dau);
        if (temp > it || temp==-1)
        {
            for (int i:tmp) dau[i] ^= 1;
            temp = tryCombination(dau);
        }
        int l = 0; int r=tmp.size()-1;
        while (l<r)
        {
            int mid=(l+r)/2;
            for (int i=0; i<=mid; i++) dau[tmp[i]]^=1;
            int val = tryCombination(dau);
            for (int i=0; i<=mid; i++) dau[tmp[i]]^=1;
            if (val>it||val==-1) r=mid;
            else l=mid+1;
        }
        d[it] = tmp[r];
        dau[d[it]] ^= 1;
        for (int i=r+1; i<tmp.size(); i++) swap(tmp[i],tmp[i-1]);
        tmp.pop_back();
    }
    answer(dau,d);
}

Compilation message (stderr)

cave.cpp:5:5: error: storage size of 'dau' isn't known
    5 | int dau[],s[],d[];
      |     ^~~
cave.cpp:5:11: error: storage size of 's' isn't known
    5 | int dau[],s[],d[];
      |           ^
cave.cpp:5:15: error: storage size of 'd' isn't known
    5 | int dau[],s[],d[];
      |               ^
cave.cpp: In function 'void exploreCave(int)':
cave.cpp:31:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |         for (int i=r+1; i<tmp.size(); i++) swap(tmp[i],tmp[i-1]);
      |                         ~^~~~~~~~~~~