Submission #758504

# Submission time Handle Problem Language Result Execution time Memory
758504 2023-06-14T17:41:24 Z Andrey The Big Prize (IOI17_prize) C++14
90 / 100
64 ms 336 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 = 450;
	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 208 KB Output is correct
2 Correct 6 ms 208 KB Output is correct
3 Correct 7 ms 208 KB Output is correct
4 Correct 5 ms 208 KB Output is correct
5 Correct 7 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 4 ms 288 KB Output is correct
8 Correct 6 ms 208 KB Output is correct
9 Correct 8 ms 292 KB Output is correct
10 Correct 8 ms 208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 7 ms 208 KB Output is correct
2 Correct 3 ms 336 KB Output is correct
3 Correct 5 ms 292 KB Output is correct
4 Correct 9 ms 208 KB Output is correct
5 Correct 8 ms 208 KB Output is correct
6 Correct 1 ms 288 KB Output is correct
7 Correct 6 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 8 ms 288 KB Output is correct
10 Correct 10 ms 208 KB Output is correct
11 Correct 9 ms 300 KB Output is correct
12 Correct 3 ms 280 KB Output is correct
13 Correct 13 ms 288 KB Output is correct
14 Correct 3 ms 208 KB Output is correct
15 Correct 15 ms 292 KB Output is correct
16 Correct 42 ms 292 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Partially correct 46 ms 292 KB Partially correct - number of queries: 5955
19 Correct 5 ms 208 KB Output is correct
20 Correct 13 ms 288 KB Output is correct
21 Correct 20 ms 296 KB Output is correct
22 Correct 7 ms 288 KB Output is correct
23 Correct 3 ms 292 KB Output is correct
24 Correct 3 ms 208 KB Output is correct
25 Correct 38 ms 272 KB Output is correct
26 Correct 34 ms 208 KB Output is correct
27 Correct 7 ms 292 KB Output is correct
28 Partially correct 61 ms 208 KB Partially correct - number of queries: 5986
29 Correct 38 ms 276 KB Output is correct
30 Partially correct 64 ms 292 KB Partially correct - number of queries: 6061
31 Correct 4 ms 272 KB Output is correct
32 Correct 7 ms 208 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 23 ms 288 KB Output is correct
35 Correct 7 ms 292 KB Output is correct
36 Correct 7 ms 272 KB Output is correct
37 Correct 5 ms 296 KB Output is correct
38 Correct 3 ms 208 KB Output is correct
39 Correct 20 ms 208 KB Output is correct
40 Partially correct 23 ms 288 KB Partially correct - number of queries: 5634
41 Correct 13 ms 336 KB Output is correct
42 Correct 32 ms 208 KB Output is correct
43 Correct 17 ms 292 KB Output is correct
44 Correct 21 ms 208 KB Output is correct
45 Correct 23 ms 208 KB Output is correct
46 Correct 2 ms 292 KB Output is correct
47 Correct 34 ms 208 KB Output is correct
48 Correct 25 ms 208 KB Output is correct
49 Correct 11 ms 296 KB Output is correct
50 Partially correct 62 ms 288 KB Partially correct - number of queries: 5936
51 Correct 23 ms 208 KB Output is correct
52 Correct 6 ms 288 KB Output is correct
53 Correct 10 ms 288 KB Output is correct
54 Correct 28 ms 268 KB Output is correct
55 Correct 5 ms 208 KB Output is correct
56 Partially correct 45 ms 292 KB Partially correct - number of queries: 5947
57 Correct 35 ms 208 KB Output is correct
58 Correct 33 ms 208 KB Output is correct
59 Correct 32 ms 288 KB Output is correct
60 Correct 33 ms 208 KB Output is correct
61 Correct 7 ms 208 KB Output is correct
62 Correct 4 ms 208 KB Output is correct
63 Correct 7 ms 208 KB Output is correct
64 Correct 9 ms 288 KB Output is correct
65 Correct 8 ms 208 KB Output is correct
66 Correct 7 ms 208 KB Output is correct
67 Correct 8 ms 208 KB Output is correct
68 Correct 3 ms 208 KB Output is correct
69 Correct 6 ms 208 KB Output is correct
70 Correct 10 ms 292 KB Output is correct
71 Partially correct 61 ms 208 KB Partially correct - number of queries: 6111
72 Correct 10 ms 208 KB Output is correct
73 Partially correct 39 ms 208 KB Partially correct - number of queries: 6027
74 Partially correct 55 ms 208 KB Partially correct - number of queries: 6063
75 Correct 7 ms 208 KB Output is correct
76 Partially correct 59 ms 208 KB Partially correct - number of queries: 5291
77 Partially correct 51 ms 208 KB Partially correct - number of queries: 6108
78 Correct 14 ms 208 KB Output is correct
79 Correct 25 ms 208 KB Output is correct
80 Partially correct 62 ms 288 KB Partially correct - number of queries: 6110
81 Partially correct 43 ms 208 KB Partially correct - number of queries: 6111
82 Partially correct 48 ms 208 KB Partially correct - number of queries: 6064
83 Correct 8 ms 208 KB Output is correct
84 Partially correct 39 ms 208 KB Partially correct - number of queries: 5120
85 Partially correct 51 ms 208 KB Partially correct - number of queries: 6112
86 Correct 10 ms 208 KB Output is correct
87 Correct 4 ms 336 KB Output is correct
88 Correct 8 ms 208 KB Output is correct
89 Correct 10 ms 208 KB Output is correct
90 Correct 5 ms 292 KB Output is correct
91 Correct 10 ms 208 KB Output is correct
92 Correct 8 ms 208 KB Output is correct
93 Correct 8 ms 208 KB Output is correct
94 Correct 10 ms 208 KB Output is correct
95 Correct 8 ms 208 KB Output is correct
96 Correct 9 ms 208 KB Output is correct
97 Correct 6 ms 208 KB Output is correct