Submission #89274

# Submission time Handle Problem Language Result Execution time Memory
89274 2018-12-11T08:17:36 Z igzi The Big Prize (IOI17_prize) C++17
100 / 100
56 ms 5492 KB
#include <bits/stdc++.h>
#include "prize.h"
using namespace std;
 
vector<int> tab[200009];
 
vector<int> query(int a){
    if(!tab[a].empty()){
        return tab[a];
    }
    return tab[a] = ask(a);
}
 
int sumQuery(int a){
    return query(a)[0]+query(a)[1];
}
 
int ans = -1, maxi = 0;
 
void solve(int l, int r, int nb, int ln){
    if(nb == 0) return;
    if(l > r) return ;
    int a = r-l+1;
    int cnt = 0;
    int start = l;
    int mem = ln;
    for(int i = 1; i <= nb; i++){
        int curr = l+max(1,(r-l+2)/(nb+1))*i-1;
        if(curr >= l && curr <= r){
            if(sumQuery(curr) == 0){
                ans = curr;
                break;
            }
            if(sumQuery(curr) != maxi){
                cnt++;
                continue;
            }
            solve(start, curr-1, query(curr)[0]-mem, mem);
            start = curr+1;
            mem = query(curr)[0];
        }
 
    }
    if(ans == -1 && cnt  < nb && start <= r){
        solve(start, r, nb-mem+ln, mem);
    }
}
 
int find_best(int n)
{
    for(int i = 1; i <= 1000; i++){
        int curr = max(1,(n/1000))*i;
        if(curr >= 0 && curr < n){
            if(sumQuery(curr) == 0) return curr;
            maxi = max(maxi, sumQuery(curr));
        }
    }
    int start = 0;
    int ln = 0;
    for(int i = 1; i <= 1000; i++){
        if(ans != -1) return ans;
        int curr = max(1,(n/1000))*i;
        if(curr >= 0 && curr < n && sumQuery(curr) == maxi){
            solve(start, curr-1, query(curr)[0]-ln, ln);
            start = curr+1;
            ln = query(curr)[0];
        }
    }
    if(ans == -1){
        solve(start, n-1, maxi-ln,ln);
    }
	return ans;
}

Compilation message

prize.cpp: In function 'void solve(int, int, int, int)':
prize.cpp:23:9: warning: unused variable 'a' [-Wunused-variable]
     int a = r-l+1;
         ^
# Verdict Execution time Memory Grader output
1 Correct 18 ms 4984 KB Output is correct
2 Correct 17 ms 5060 KB Output is correct
3 Correct 11 ms 5128 KB Output is correct
4 Correct 18 ms 5168 KB Output is correct
5 Correct 10 ms 5188 KB Output is correct
6 Correct 12 ms 5208 KB Output is correct
7 Correct 10 ms 5208 KB Output is correct
8 Correct 11 ms 5208 KB Output is correct
9 Correct 11 ms 5256 KB Output is correct
10 Correct 16 ms 5256 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 19 ms 5256 KB Output is correct
2 Correct 16 ms 5256 KB Output is correct
3 Correct 11 ms 5256 KB Output is correct
4 Correct 22 ms 5256 KB Output is correct
5 Correct 11 ms 5256 KB Output is correct
6 Correct 17 ms 5256 KB Output is correct
7 Correct 13 ms 5308 KB Output is correct
8 Correct 12 ms 5308 KB Output is correct
9 Correct 12 ms 5308 KB Output is correct
10 Correct 19 ms 5308 KB Output is correct
11 Correct 17 ms 5308 KB Output is correct
12 Correct 18 ms 5308 KB Output is correct
13 Correct 14 ms 5308 KB Output is correct
14 Correct 20 ms 5308 KB Output is correct
15 Correct 13 ms 5308 KB Output is correct
16 Correct 48 ms 5308 KB Output is correct
17 Correct 16 ms 5308 KB Output is correct
18 Correct 34 ms 5364 KB Output is correct
19 Correct 16 ms 5364 KB Output is correct
20 Correct 24 ms 5364 KB Output is correct
21 Correct 32 ms 5364 KB Output is correct
22 Correct 18 ms 5364 KB Output is correct
23 Correct 16 ms 5364 KB Output is correct
24 Correct 14 ms 5364 KB Output is correct
25 Correct 28 ms 5364 KB Output is correct
26 Correct 18 ms 5364 KB Output is correct
27 Correct 32 ms 5364 KB Output is correct
28 Correct 24 ms 5368 KB Output is correct
29 Correct 22 ms 5404 KB Output is correct
30 Correct 47 ms 5404 KB Output is correct
31 Correct 18 ms 5404 KB Output is correct
32 Correct 12 ms 5404 KB Output is correct
33 Correct 6 ms 5404 KB Output is correct
34 Correct 16 ms 5404 KB Output is correct
35 Correct 20 ms 5404 KB Output is correct
36 Correct 26 ms 5404 KB Output is correct
37 Correct 18 ms 5404 KB Output is correct
38 Correct 19 ms 5404 KB Output is correct
39 Correct 18 ms 5404 KB Output is correct
40 Correct 43 ms 5404 KB Output is correct
41 Correct 31 ms 5404 KB Output is correct
42 Correct 28 ms 5432 KB Output is correct
43 Correct 19 ms 5432 KB Output is correct
44 Correct 32 ms 5432 KB Output is correct
45 Correct 17 ms 5432 KB Output is correct
46 Correct 18 ms 5432 KB Output is correct
47 Correct 24 ms 5432 KB Output is correct
48 Correct 42 ms 5432 KB Output is correct
49 Correct 13 ms 5432 KB Output is correct
50 Correct 47 ms 5432 KB Output is correct
51 Correct 38 ms 5432 KB Output is correct
52 Correct 17 ms 5432 KB Output is correct
53 Correct 17 ms 5432 KB Output is correct
54 Correct 28 ms 5432 KB Output is correct
55 Correct 17 ms 5432 KB Output is correct
56 Correct 39 ms 5432 KB Output is correct
57 Correct 41 ms 5432 KB Output is correct
58 Correct 40 ms 5432 KB Output is correct
59 Correct 19 ms 5432 KB Output is correct
60 Correct 35 ms 5432 KB Output is correct
61 Correct 17 ms 5432 KB Output is correct
62 Correct 19 ms 5432 KB Output is correct
63 Correct 15 ms 5432 KB Output is correct
64 Correct 18 ms 5432 KB Output is correct
65 Correct 19 ms 5432 KB Output is correct
66 Correct 14 ms 5432 KB Output is correct
67 Correct 16 ms 5432 KB Output is correct
68 Correct 22 ms 5432 KB Output is correct
69 Correct 50 ms 5432 KB Output is correct
70 Correct 11 ms 5432 KB Output is correct
71 Correct 51 ms 5432 KB Output is correct
72 Correct 21 ms 5432 KB Output is correct
73 Correct 43 ms 5472 KB Output is correct
74 Correct 54 ms 5472 KB Output is correct
75 Correct 19 ms 5472 KB Output is correct
76 Correct 54 ms 5472 KB Output is correct
77 Correct 49 ms 5472 KB Output is correct
78 Correct 23 ms 5472 KB Output is correct
79 Correct 31 ms 5472 KB Output is correct
80 Correct 49 ms 5472 KB Output is correct
81 Correct 50 ms 5492 KB Output is correct
82 Correct 27 ms 5492 KB Output is correct
83 Correct 18 ms 5492 KB Output is correct
84 Correct 44 ms 5492 KB Output is correct
85 Correct 52 ms 5492 KB Output is correct
86 Correct 51 ms 5492 KB Output is correct
87 Correct 23 ms 5492 KB Output is correct
88 Correct 32 ms 5492 KB Output is correct
89 Correct 49 ms 5492 KB Output is correct
90 Correct 19 ms 5492 KB Output is correct
91 Correct 37 ms 5492 KB Output is correct
92 Correct 52 ms 5492 KB Output is correct
93 Correct 34 ms 5492 KB Output is correct
94 Correct 48 ms 5492 KB Output is correct
95 Correct 56 ms 5492 KB Output is correct
96 Correct 50 ms 5492 KB Output is correct
97 Correct 49 ms 5492 KB Output is correct