oj.uz

Submission #252480

# Submission time Handle Problem Language Result Execution time Memory
252480 2020-07-25T16:31:01 Z Mercenary The Big Prize (IOI17_prize) C++14
100 / 100
 72 ms 9976 KB 
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 5;
typedef pair<int,int> ii;
#define mp make_pair
int ans = -1;
set<ii> s[maxn];

void solve(int l , int r){
    if(ans != -1 || l > r)return;
    int mid = l + r >> 1;
    vector<int> a = ask(mid);
    int sum = a[0] + a[1];
    if(sum == 0){
        ans = mid;
        return;
    }
    s[sum].insert(make_pair(mid,a[0]));
    auto it = s[sum].lower_bound(make_pair(mid,0));
    bool ok = 1 , ok1 = 1;
    if(next(it) != s[sum].end()){
        if((next(it)->second == a[0]))ok = 0;
    }
    if(it != s[sum].begin()){
        if((prev(it)->second == a[0]))ok1 = 0;
    }
    if(ok)solve(mid + 1 , r);
    if(ok1)solve(l , mid - 1);
}

int find_best(int n) {
	solve(0 , n - 1);
	return ans;
}

Compilation message

prize.cpp: In function 'void solve(int, int)':
prize.cpp:12:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid = l + r >> 1;
               ~~^~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 8 ms 9728 KB Output is correct
6 Correct 6 ms 9728 KB Output is correct
7 Correct 8 ms 9728 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9864 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 8 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 8 ms 9728 KB Output is correct
6 Correct 8 ms 9728 KB Output is correct
7 Correct 6 ms 9768 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 8 ms 9860 KB Output is correct
12 Correct 12 ms 9728 KB Output is correct
13 Correct 6 ms 9728 KB Output is correct
14 Correct 13 ms 9728 KB Output is correct
15 Correct 57 ms 9852 KB Output is correct
16 Correct 17 ms 9728 KB Output is correct
17 Correct 46 ms 9848 KB Output is correct
18 Correct 6 ms 9728 KB Output is correct
19 Correct 41 ms 9848 KB Output is correct
20 Correct 31 ms 9728 KB Output is correct
21 Correct 46 ms 9848 KB Output is correct
22 Correct 47 ms 9848 KB Output is correct
23 Correct 8 ms 9728 KB Output is correct
24 Correct 10 ms 9728 KB Output is correct
25 Correct 31 ms 9848 KB Output is correct
26 Correct 33 ms 9848 KB Output is correct
27 Correct 8 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 8 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 55 ms 9920 KB Output is correct
32 Correct 8 ms 9728 KB Output is correct
33 Correct 6 ms 9728 KB Output is correct
34 Correct 49 ms 9956 KB Output is correct
35 Correct 8 ms 9728 KB Output is correct
36 Correct 37 ms 9976 KB Output is correct
37 Correct 12 ms 9728 KB Output is correct
38 Correct 7 ms 9728 KB Output is correct
39 Correct 40 ms 9848 KB Output is correct
40 Correct 7 ms 9728 KB Output is correct
41 Correct 23 ms 9848 KB Output is correct
42 Correct 33 ms 9848 KB Output is correct
43 Correct 34 ms 9848 KB Output is correct
44 Correct 43 ms 9848 KB Output is correct
45 Correct 46 ms 9848 KB Output is correct
46 Correct 68 ms 9848 KB Output is correct
47 Correct 38 ms 9848 KB Output is correct
48 Correct 19 ms 9728 KB Output is correct
49 Correct 62 ms 9848 KB Output is correct
50 Correct 6 ms 9728 KB Output is correct
51 Correct 29 ms 9848 KB Output is correct
52 Correct 59 ms 9976 KB Output is correct
53 Correct 8 ms 9728 KB Output is correct
54 Correct 23 ms 9944 KB Output is correct
55 Correct 50 ms 9976 KB Output is correct
56 Correct 8 ms 9728 KB Output is correct
57 Correct 21 ms 9728 KB Output is correct
58 Correct 13 ms 9908 KB Output is correct
59 Correct 25 ms 9752 KB Output is correct
60 Correct 26 ms 9848 KB Output is correct
61 Correct 6 ms 9728 KB Output is correct
62 Correct 9 ms 9728 KB Output is correct
63 Correct 8 ms 9728 KB Output is correct
64 Correct 7 ms 9728 KB Output is correct
65 Correct 7 ms 9728 KB Output is correct
66 Correct 6 ms 9728 KB Output is correct
67 Correct 7 ms 9728 KB Output is correct
68 Correct 8 ms 9728 KB Output is correct
69 Correct 6 ms 9760 KB Output is correct
70 Correct 6 ms 9728 KB Output is correct
71 Correct 70 ms 9976 KB Output is correct
72 Correct 9 ms 9728 KB Output is correct
73 Correct 42 ms 9848 KB Output is correct
74 Correct 47 ms 9976 KB Output is correct
75 Correct 8 ms 9728 KB Output is correct
76 Correct 37 ms 9848 KB Output is correct
77 Correct 44 ms 9976 KB Output is correct
78 Correct 11 ms 9728 KB Output is correct
79 Correct 36 ms 9848 KB Output is correct
80 Correct 72 ms 9976 KB Output is correct
81 Correct 49 ms 9976 KB Output is correct
82 Correct 57 ms 9976 KB Output is correct
83 Correct 7 ms 9728 KB Output is correct
84 Correct 46 ms 9848 KB Output is correct
85 Correct 54 ms 9976 KB Output is correct
86 Correct 11 ms 9728 KB Output is correct
87 Correct 8 ms 9728 KB Output is correct
88 Correct 11 ms 9728 KB Output is correct
89 Correct 11 ms 9728 KB Output is correct
90 Correct 8 ms 9728 KB Output is correct
91 Correct 9 ms 9728 KB Output is correct
92 Correct 6 ms 9728 KB Output is correct
93 Correct 9 ms 9728 KB Output is correct
94 Correct 9 ms 9728 KB Output is correct
95 Correct 8 ms 9776 KB Output is correct
96 Correct 7 ms 9776 KB Output is correct
97 Correct 6 ms 9728 KB Output is correct