Submission #849786

#	Time	Username	Problem	Language	Result	Execution time	Memory
849786		JooDdae	Cave (IOI13_cave)	C++17	Compilation error	0 ms	0 KiB

cave

#include "cave.h"



void exploreCave(int N) {
    int a[N], b[N], c[N];
    for(int i=0;i<N;i++) a[i] = b[i] = c[i] = -1;

    for(int i=0;i<N;i++) {
        int cnt = N-i;

        vector<int> v;
        for(int j=0;j<N;j++) if(b[j] == -1) a[j] = 0, v.push_back(j);
        int re = tryCombination(a);

        int flag = (re == -1 || re > i ? 0 : 1);


        while(v.size() > 1) {
            int mid = v.size()/2;

            for(int i=0;i<v.size();i++) a[v[i]] = (i < mid) ^ flag;

            int re = tryCombination(a);
            if(re == -1 || re > i) v = vector(v.begin()+mid, v.end());
            else v = vector(v.begin(), v.begin()+mid);
        }

        c[i] = v[0], a[c[i]] = flag, b[c[i]] = 1;
    }

    answer(a, c);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:12:9: error: 'vector' was not declared in this scope
   12 |         vector<int> v;
      |         ^~~~~~
cave.cpp:12:16: error: expected primary-expression before 'int'
   12 |         vector<int> v;
      |                ^~~
cave.cpp:13:55: error: 'v' was not declared in this scope
   13 |         for(int j=0;j<N;j++) if(b[j] == -1) a[j] = 0, v.push_back(j);
      |                                                       ^
cave.cpp:19:15: error: 'v' was not declared in this scope
   19 |         while(v.size() > 1) {
      |               ^
cave.cpp:29:16: error: 'v' was not declared in this scope
   29 |         c[i] = v[0], a[c[i]] = flag, b[c[i]] = 1;
      |                ^
cave.cpp:10:13: warning: unused variable 'cnt' [-Wunused-variable]
   10 |         int cnt = N-i;
      |             ^~~