oj.uz

Submission #295415

# Submission time Handle Problem Language Result Execution time Memory
295415 2020-09-09T16:31:15 Z williamMBDK The Big Prize (IOI17_prize) C++14
90 / 100
 106 ms 384 KB 
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
int mxsum = 0;
bool ismx(vector<int> ans){
	int s = ans[0] + ans[1];
	return s == mxsum;
}
int find_best(int N) {
	for(int i = 0; i < min(N, 711); i++){
		vector<int> ans = ask(i);
		int s = ans[0] + ans[1];
		if(ans[0] + ans[1] == 0){
			return i;
		}
		if(s > mxsum) mxsum = s; 
	}
	int idx = 0;
	while(1){
		vector<int> ori;
		while(1){
			vector<int> ans = ask(idx);
			if(ismx(ans)) {
				ori = ans;
				break;
			}
			if(ans[0] + ans[1] == 0){
				return idx;
			}
			idx++;
		}
		// ori should always have length here
		// there should always be positive amount lower here
		int l = idx, r = N - 1;
		while(l < r){
			int m = (l + r) / 2;
			auto ans = ask(m);
			if(ans[0] + ans[1] == 0){
				return m;
			}
			if(ans[1] == ori[1]){
				l = m + 1;
			}else if(ans[1] < ori[1]){
				r = m - 1;
			}
		}
		if(ask(l)[1] == ori[1]){
			idx = l + 1;
		}else{
			idx = l; 
		}
	}
	return -1;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 256 KB Output is correct
2 Correct 6 ms 256 KB Output is correct
3 Correct 10 ms 256 KB Output is correct
4 Correct 8 ms 256 KB Output is correct
5 Correct 7 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 7 ms 256 KB Output is correct
8 Correct 7 ms 256 KB Output is correct
9 Correct 6 ms 256 KB Output is correct
10 Correct 7 ms 256 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 256 KB Output is correct
2 Correct 8 ms 256 KB Output is correct
3 Correct 7 ms 256 KB Output is correct
4 Correct 7 ms 256 KB Output is correct
5 Correct 8 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 7 ms 288 KB Output is correct
8 Correct 7 ms 256 KB Output is correct
9 Correct 8 ms 256 KB Output is correct
10 Correct 6 ms 256 KB Output is correct
11 Correct 10 ms 256 KB Output is correct
12 Correct 7 ms 256 KB Output is correct
13 Correct 12 ms 256 KB Output is correct
14 Correct 9 ms 256 KB Output is correct
15 Correct 18 ms 256 KB Output is correct
16 Partially correct 71 ms 256 KB Partially correct - number of queries: 8114
17 Correct 4 ms 256 KB Output is correct
18 Partially correct 75 ms 256 KB Partially correct - number of queries: 9407
19 Correct 5 ms 256 KB Output is correct
20 Correct 26 ms 256 KB Output is correct
21 Correct 38 ms 360 KB Output is correct
22 Correct 18 ms 364 KB Output is correct
23 Correct 7 ms 368 KB Output is correct
24 Correct 8 ms 364 KB Output is correct
25 Partially correct 58 ms 356 KB Partially correct - number of queries: 5628
26 Partially correct 55 ms 368 KB Partially correct - number of queries: 5546
27 Correct 10 ms 256 KB Output is correct
28 Partially correct 106 ms 356 KB Partially correct - number of queries: 8963
29 Partially correct 81 ms 356 KB Partially correct - number of queries: 6961
30 Partially correct 86 ms 256 KB Partially correct - number of queries: 9329
31 Correct 3 ms 356 KB Output is correct
32 Correct 11 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 47 ms 384 KB Output is correct
35 Correct 5 ms 364 KB Output is correct
36 Correct 34 ms 356 KB Output is correct
37 Correct 9 ms 256 KB Output is correct
38 Correct 12 ms 256 KB Output is correct
39 Correct 48 ms 288 KB Output is correct
40 Partially correct 76 ms 256 KB Partially correct - number of queries: 8079
41 Partially correct 72 ms 256 KB Partially correct - number of queries: 5912
42 Partially correct 53 ms 364 KB Partially correct - number of queries: 5912
43 Partially correct 69 ms 256 KB Partially correct - number of queries: 5400
44 Correct 43 ms 364 KB Output is correct
45 Correct 24 ms 256 KB Output is correct
46 Correct 5 ms 356 KB Output is correct
47 Correct 60 ms 364 KB Output is correct
48 Partially correct 37 ms 360 KB Partially correct - number of queries: 7132
49 Correct 17 ms 256 KB Output is correct
50 Partially correct 104 ms 256 KB Partially correct - number of queries: 9396
51 Correct 23 ms 360 KB Output is correct
52 Correct 7 ms 364 KB Output is correct
53 Correct 8 ms 256 KB Output is correct
54 Correct 38 ms 360 KB Output is correct
55 Correct 3 ms 256 KB Output is correct
56 Partially correct 87 ms 256 KB Partially correct - number of queries: 9399
57 Partially correct 53 ms 256 KB Partially correct - number of queries: 7034
58 Partially correct 58 ms 256 KB Partially correct - number of queries: 7156
59 Partially correct 66 ms 256 KB Partially correct - number of queries: 5912
60 Partially correct 29 ms 364 KB Partially correct - number of queries: 5531
61 Correct 12 ms 256 KB Output is correct
62 Correct 10 ms 256 KB Output is correct
63 Correct 7 ms 360 KB Output is correct
64 Correct 8 ms 360 KB Output is correct
65 Correct 8 ms 256 KB Output is correct
66 Correct 8 ms 360 KB Output is correct
67 Correct 7 ms 256 KB Output is correct
68 Correct 6 ms 360 KB Output is correct
69 Correct 10 ms 256 KB Output is correct
70 Correct 7 ms 360 KB Output is correct
71 Partially correct 88 ms 256 KB Partially correct - number of queries: 9455
72 Correct 13 ms 256 KB Output is correct
73 Partially correct 80 ms 256 KB Partially correct - number of queries: 9326
74 Partially correct 84 ms 292 KB Partially correct - number of queries: 9384
75 Correct 8 ms 256 KB Output is correct
76 Partially correct 69 ms 256 KB Partially correct - number of queries: 8143
77 Partially correct 82 ms 384 KB Partially correct - number of queries: 9449
78 Correct 12 ms 256 KB Output is correct
79 Correct 76 ms 256 KB Output is correct
80 Partially correct 85 ms 256 KB Partially correct - number of queries: 9400
81 Partially correct 81 ms 384 KB Partially correct - number of queries: 9414
82 Partially correct 106 ms 256 KB Partially correct - number of queries: 9371
83 Correct 10 ms 256 KB Output is correct
84 Partially correct 69 ms 256 KB Partially correct - number of queries: 7838
85 Partially correct 78 ms 256 KB Partially correct - number of queries: 9453
86 Correct 10 ms 256 KB Output is correct
87 Correct 8 ms 256 KB Output is correct
88 Correct 6 ms 384 KB Output is correct
89 Correct 15 ms 256 KB Output is correct
90 Correct 8 ms 256 KB Output is correct
91 Correct 8 ms 256 KB Output is correct
92 Correct 14 ms 256 KB Output is correct
93 Correct 15 ms 256 KB Output is correct
94 Correct 21 ms 384 KB Output is correct
95 Correct 19 ms 256 KB Output is correct
96 Correct 19 ms 256 KB Output is correct
97 Correct 11 ms 256 KB Output is correct