oj.uz

Submission #945121

# Submission time Handle Problem Language Result Execution time Memory
945121 2024-03-13T12:27:46 Z Wansur The Big Prize (IOI17_prize) C++14
20 / 100
 49 ms 6828 KB 
#include <bits/stdc++.h>
#define f first
#define s second
#define ent '\n'

typedef long long ll;
using namespace std;

struct asd{
    int a, b, w, ca, cb;
};

vector<int> ask(int i);
const string out[2]={"NO\n","YES\n"};
const ll dx[]={0,1,0,-1,-1,1,1,-1};
const ll dy[]={1,0,-1,0,-1,1,-1,1};
const int mod=998244353;
const int md=1e9+7;
const int mx=2e5+12;
const bool T=0;

vector<int> ans[mx];
mt19937 rng(5245152);
int ma;

vector<int> Ask(int i){
    if(ans[i].size()){
        return ans[i];
    }
    return ans[i]=ask(i);
}

int find(int l,int r,int x,int left,int right){
    if(!x || l>r)return -1;
    int mid=l+r>>1, cnt=0;
    for(int x=0;mid-x>=l || mid+x<=r;x++){
        if(mid+x<=r){
            auto a=Ask(mid+x);
            if(a[0]+a[1]==ma){
                int val=find(mid+x+1, r, a[1]-right, a[0], right);
                if(val!=-1)return val;
                val=find(l, mid - x - (x==0), a[0] - cnt - left, left, a[1] + cnt);
                return val;
            }
            if(a[0]+a[1]==0){
                return mid+x;
            }
            cnt++;
        }
        if(mid-x>=l){
            auto a=Ask(mid-x);
            if(a[0]+a[1]==ma){
                int val=find(l, mid-x-1, a[0]-left, left, a[1]);
                if(val!=-1)return val;
                val=find(mid+x+1, r, a[1] - cnt - right, a[0] + cnt, right);
                return val;
            }
            if(a[0]+a[1]==0){
                return mid-x;
            }
            cnt++;
        }
    }
    return -1;
}

int find_best(int n){
    int t=500;
    while(t--){
        int i=rng()%n;
        auto a=Ask(i);
        if(a[0]+a[1]==0){
            return i;
        }
        ma=max(ma, a[0]+a[1]);
        if(ma>sqrt(sqrt(n))+1){
            break;
        }
    }
    return find(0, n-1, ma , 0, 0);
}

Compilation message

prize.cpp: In function 'int find(int, int, int, int, int)':
prize.cpp:35:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   35 |     int mid=l+r>>1, cnt=0;
      |             ~^~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5400 KB Output is correct
2 Correct 4 ms 5396 KB Output is correct
3 Correct 4 ms 5396 KB Output is correct
4 Correct 4 ms 5148 KB Output is correct
5 Correct 4 ms 5396 KB Output is correct
6 Correct 3 ms 5404 KB Output is correct
7 Correct 4 ms 5400 KB Output is correct
8 Correct 4 ms 5392 KB Output is correct
9 Correct 3 ms 5396 KB Output is correct
10 Correct 5 ms 5144 KB Output is correct

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5400 KB Output is correct
2 Correct 5 ms 5408 KB Output is correct
3 Correct 4 ms 5404 KB Output is correct
4 Correct 3 ms 5148 KB Output is correct
5 Correct 3 ms 5144 KB Output is correct
6 Correct 3 ms 5396 KB Output is correct
7 Correct 3 ms 5404 KB Output is correct
8 Correct 3 ms 5400 KB Output is correct
9 Correct 3 ms 5396 KB Output is correct
10 Correct 5 ms 5304 KB Output is correct
11 Correct 3 ms 5392 KB Output is correct
12 Correct 4 ms 5220 KB Output is correct
13 Correct 1 ms 4952 KB Output is correct
14 Correct 7 ms 5392 KB Output is correct
15 Correct 17 ms 6200 KB Output is correct
16 Correct 6 ms 5412 KB Output is correct
17 Correct 25 ms 6228 KB Output is correct
18 Correct 1 ms 4952 KB Output is correct
19 Correct 26 ms 5752 KB Output is correct
20 Correct 10 ms 5936 KB Output is correct
21 Correct 19 ms 5708 KB Output is correct
22 Correct 17 ms 5704 KB Output is correct
23 Correct 4 ms 5396 KB Output is correct
24 Correct 4 ms 5144 KB Output is correct
25 Correct 9 ms 6180 KB Output is correct
26 Correct 12 ms 5684 KB Output is correct
27 Correct 4 ms 5404 KB Output is correct
28 Correct 3 ms 5140 KB Output is correct
29 Correct 3 ms 5392 KB Output is correct
30 Correct 2 ms 5132 KB Output is correct
31 Correct 28 ms 5772 KB Output is correct
32 Correct 2 ms 5140 KB Output is correct
33 Correct 2 ms 4952 KB Output is correct
34 Correct 18 ms 5688 KB Output is correct
35 Correct 5 ms 5664 KB Output is correct
36 Correct 19 ms 5724 KB Output is correct
37 Correct 4 ms 5212 KB Output is correct
38 Correct 4 ms 5396 KB Output is correct
39 Correct 14 ms 5920 KB Output is correct
40 Correct 2 ms 5136 KB Output is correct
41 Correct 10 ms 5452 KB Output is correct
42 Correct 10 ms 5704 KB Output is correct
43 Correct 11 ms 5704 KB Output is correct
44 Correct 18 ms 5680 KB Output is correct
45 Correct 17 ms 5448 KB Output is correct
46 Correct 26 ms 5732 KB Output is correct
47 Correct 13 ms 5396 KB Output is correct
48 Correct 7 ms 5932 KB Output is correct
49 Correct 25 ms 5740 KB Output is correct
50 Correct 1 ms 4952 KB Output is correct
51 Correct 14 ms 5940 KB Output is correct
52 Correct 25 ms 5756 KB Output is correct
53 Correct 4 ms 5644 KB Output is correct
54 Correct 15 ms 5700 KB Output is correct
55 Correct 27 ms 5972 KB Output is correct
56 Correct 1 ms 4952 KB Output is correct
57 Correct 7 ms 5680 KB Output is correct
58 Correct 7 ms 5924 KB Output is correct
59 Correct 12 ms 5748 KB Output is correct
60 Correct 13 ms 5908 KB Output is correct
61 Correct 4 ms 5404 KB Output is correct
62 Correct 4 ms 5400 KB Output is correct
63 Correct 5 ms 5404 KB Output is correct
64 Correct 5 ms 5408 KB Output is correct
65 Correct 3 ms 5136 KB Output is correct
66 Correct 4 ms 5652 KB Output is correct
67 Correct 2 ms 5140 KB Output is correct
68 Correct 2 ms 5144 KB Output is correct
69 Correct 4 ms 5148 KB Output is correct
70 Correct 2 ms 5136 KB Output is correct
71 Correct 24 ms 5504 KB Output is correct
72 Correct 4 ms 5400 KB Output is correct
73 Correct 26 ms 5664 KB Output is correct
74 Correct 24 ms 5916 KB Output is correct
75 Correct 5 ms 5152 KB Output is correct
76 Correct 24 ms 5656 KB Output is correct
77 Partially correct 26 ms 5900 KB Partially correct - number of queries: 5015
78 Correct 3 ms 5396 KB Output is correct
79 Correct 14 ms 5908 KB Output is correct
80 Partially correct 24 ms 5740 KB Partially correct - number of queries: 5002
81 Correct 22 ms 6428 KB Output is correct
82 Correct 26 ms 6172 KB Output is correct
83 Correct 5 ms 5400 KB Output is correct
84 Correct 18 ms 5200 KB Output is correct
85 Partially correct 19 ms 6676 KB Partially correct - number of queries: 5020
86 Incorrect 49 ms 6828 KB Incorrect
87 Halted 0 ms 0 KB -