Submission #647450

#	Time	Username	Problem	Language	Result	Execution time	Memory
647450		a_aguilo	The Big Prize (IOI17_prize)	C++14	Compilation error	0 ms	0 KiB

prize

int find_best(int n) {
	int lo = 0; int hi = n-1;
	while(hi >= lo){
        int mid = lo + (hi - lo)/2;
        int ans[2];
        ans = ask(mid);
        if (ans[0] == 0 and ans[1] == 0) return mid;
        if(ans[0] == 0){
            lo = mid+1;
        }
        else hi = mid-1;
	}
	return 0;
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:6:15: error: 'ask' was not declared in this scope
    6 |         ans = ask(mid);
      |               ^~~