Submission #110251

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
110251	2019-05-10T10:26:11 Z	icandoit	The Big Prize (IOI17_prize)	C++14	20 / 100	89 ms	448 KB

prize

#include "prize.h"
 
int find_best(int n) {
 
	int l=0;
	int r=n-1;
	int mid;
	while(l<=r) {
		mid=(l+r)/2;
		std::vector<int> res = ask(mid);
		if(res[1]==1) {
			l=mid+1;
		}
		else if(res[0]==1) {
			r=mid-1;
		}
		else if(res[0]==0&&res[1]==0) {
			return mid;
		}
 
 
	}
	return mid;
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:7:6: warning: 'mid' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int mid;
      ^~~

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	392 KB	Output is correct
2	Correct	2 ms	256 KB	Output is correct
3	Correct	2 ms	308 KB	Output is correct
4	Correct	2 ms	256 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	6 ms	256 KB	Output is correct
7	Correct	2 ms	388 KB	Output is correct
8	Correct	2 ms	304 KB	Output is correct
9	Correct	2 ms	312 KB	Output is correct
10	Correct	2 ms	256 KB	Output is correct

Subtask #2

0 / 80.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	308 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	7 ms	412 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	2 ms	304 KB	Output is correct
6	Correct	2 ms	444 KB	Output is correct
7	Correct	2 ms	312 KB	Output is correct
8	Correct	2 ms	308 KB	Output is correct
9	Correct	3 ms	320 KB	Output is correct
10	Correct	2 ms	300 KB	Output is correct
11	Incorrect	89 ms	448 KB	Incorrect
12	Halted	0 ms	0 KB	-