Submission #758509

# Submission time Handle Problem Language Result Execution time Memory
758509 2023-06-14T17:44:56 Z Andrey The Big Prize (IOI17_prize) C++14
90 / 100
83 ms 344 KB
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;

int find_best(int n) {
	int y = 0,l,r,m,x,big = 0,z,k;
	for(int i = 0; (i+1)*(i+1) <= n; i++) {
        vector<int> a = ask(i);
        if(a[0] == 0 && a[1] == 0) {
            return i;
        }
        if(a[0]+a[1] > big) {
            big = a[0]+a[1];
            y = i+1;
        }
	}
	k = 600;
	while(y < n) {
        vector<int> a = ask(y);
        x = a[0];
        z = a[1];
        l = y;
        r = n-1;
        if(x+z == 0) {
            return y;
        }
        for(int i = l+k; i < n; i+=k) {
            a = ask(i);
            if(a[0] == x && a[1] == z) {
                l = i;
            }
            else {
                r = i-1;
                l = r-k+1;
                break;
            }
        }
        while(l < r) {
            m = (l+r+1)/2;
            a = ask(m);
            if(a[0] == x && a[1] == z) {
                l = m;
            }
            else {
                r = m-1;
            }
        }
        a = ask(l+1);
        if(a[0] == 0 && a[1] == 0) {
            return l+1;
        }
        y = l+2;
	}
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:54:1: warning: control reaches end of non-void function [-Wreturn-type]
   54 | }
      | ^
# Verdict Execution time Memory Grader output
1 Correct 3 ms 336 KB Output is correct
2 Correct 3 ms 208 KB Output is correct
3 Correct 8 ms 292 KB Output is correct
4 Correct 7 ms 344 KB Output is correct
5 Correct 4 ms 208 KB Output is correct
6 Correct 0 ms 288 KB Output is correct
7 Correct 5 ms 292 KB Output is correct
8 Correct 3 ms 292 KB Output is correct
9 Correct 7 ms 208 KB Output is correct
10 Correct 8 ms 208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 4 ms 208 KB Output is correct
2 Correct 3 ms 288 KB Output is correct
3 Correct 5 ms 296 KB Output is correct
4 Correct 7 ms 208 KB Output is correct
5 Correct 3 ms 336 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 6 ms 208 KB Output is correct
8 Correct 6 ms 296 KB Output is correct
9 Correct 3 ms 292 KB Output is correct
10 Correct 7 ms 208 KB Output is correct
11 Correct 8 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 9 ms 208 KB Output is correct
14 Correct 5 ms 208 KB Output is correct
15 Correct 5 ms 288 KB Output is correct
16 Partially correct 41 ms 208 KB Partially correct - number of queries: 5358
17 Correct 4 ms 208 KB Output is correct
18 Partially correct 30 ms 296 KB Partially correct - number of queries: 6379
19 Correct 3 ms 296 KB Output is correct
20 Correct 14 ms 292 KB Output is correct
21 Correct 10 ms 292 KB Output is correct
22 Correct 8 ms 208 KB Output is correct
23 Correct 2 ms 288 KB Output is correct
24 Correct 5 ms 292 KB Output is correct
25 Correct 44 ms 208 KB Output is correct
26 Correct 22 ms 288 KB Output is correct
27 Correct 7 ms 288 KB Output is correct
28 Partially correct 68 ms 208 KB Partially correct - number of queries: 6085
29 Correct 53 ms 208 KB Output is correct
30 Partially correct 56 ms 292 KB Partially correct - number of queries: 6505
31 Correct 4 ms 208 KB Output is correct
32 Correct 7 ms 208 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 17 ms 296 KB Output is correct
35 Correct 4 ms 292 KB Output is correct
36 Correct 7 ms 208 KB Output is correct
37 Correct 6 ms 288 KB Output is correct
38 Correct 5 ms 288 KB Output is correct
39 Correct 34 ms 208 KB Output is correct
40 Partially correct 20 ms 292 KB Partially correct - number of queries: 5265
41 Correct 21 ms 288 KB Output is correct
42 Correct 30 ms 288 KB Output is correct
43 Correct 14 ms 336 KB Output is correct
44 Correct 16 ms 208 KB Output is correct
45 Correct 10 ms 288 KB Output is correct
46 Correct 4 ms 208 KB Output is correct
47 Correct 24 ms 208 KB Output is correct
48 Correct 27 ms 292 KB Output is correct
49 Correct 9 ms 208 KB Output is correct
50 Partially correct 64 ms 292 KB Partially correct - number of queries: 6349
51 Correct 36 ms 288 KB Output is correct
52 Correct 4 ms 292 KB Output is correct
53 Correct 6 ms 208 KB Output is correct
54 Correct 11 ms 288 KB Output is correct
55 Correct 4 ms 328 KB Output is correct
56 Partially correct 45 ms 208 KB Partially correct - number of queries: 6370
57 Correct 34 ms 208 KB Output is correct
58 Correct 50 ms 292 KB Output is correct
59 Correct 42 ms 208 KB Output is correct
60 Correct 25 ms 288 KB Output is correct
61 Correct 3 ms 276 KB Output is correct
62 Correct 2 ms 336 KB Output is correct
63 Correct 7 ms 288 KB Output is correct
64 Correct 4 ms 208 KB Output is correct
65 Correct 4 ms 288 KB Output is correct
66 Correct 6 ms 276 KB Output is correct
67 Correct 6 ms 268 KB Output is correct
68 Correct 6 ms 292 KB Output is correct
69 Correct 7 ms 208 KB Output is correct
70 Correct 6 ms 292 KB Output is correct
71 Partially correct 51 ms 208 KB Partially correct - number of queries: 6582
72 Correct 10 ms 208 KB Output is correct
73 Partially correct 43 ms 208 KB Partially correct - number of queries: 6491
74 Partially correct 69 ms 208 KB Partially correct - number of queries: 6530
75 Correct 10 ms 208 KB Output is correct
76 Partially correct 28 ms 208 KB Partially correct - number of queries: 5646
77 Partially correct 40 ms 208 KB Partially correct - number of queries: 6358
78 Correct 8 ms 296 KB Output is correct
79 Correct 31 ms 208 KB Output is correct
80 Partially correct 48 ms 208 KB Partially correct - number of queries: 6332
81 Partially correct 28 ms 208 KB Partially correct - number of queries: 6342
82 Partially correct 26 ms 208 KB Partially correct - number of queries: 6323
83 Correct 8 ms 208 KB Output is correct
84 Partially correct 83 ms 208 KB Partially correct - number of queries: 5240
85 Partially correct 44 ms 208 KB Partially correct - number of queries: 6364
86 Correct 13 ms 288 KB Output is correct
87 Correct 11 ms 208 KB Output is correct
88 Correct 5 ms 208 KB Output is correct
89 Correct 10 ms 208 KB Output is correct
90 Correct 8 ms 208 KB Output is correct
91 Correct 9 ms 208 KB Output is correct
92 Correct 6 ms 208 KB Output is correct
93 Correct 10 ms 208 KB Output is correct
94 Correct 13 ms 208 KB Output is correct
95 Correct 9 ms 208 KB Output is correct
96 Correct 10 ms 208 KB Output is correct
97 Correct 6 ms 208 KB Output is correct