Submission #283895

# Submission time Handle Problem Language Result Execution time Memory
283895 2020-08-26T08:58:28 Z hank55663 The Big Prize (IOI17_prize) C++14
90 / 100
93 ms 5440 KB
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> cache[200005];
vector<int> myask(int x){
	if(cache[x].empty())cache[x]=ask(x);
	return cache[x];
}
int Maxm[200005];
int find_best(int n) {
	int Maxnum=0;
	for(int i = 0;i<n&&i<500;i++){
		vector<int> v=myask(i);
		if(v[0]+v[1]==0)return i;
		Maxnum=max(Maxnum,v[0]+v[1]);
	}
	int l=0,r=n-1;
	int num=0;
	while(true){
		int Max=r,Min=l;
	//	printf("%d %d\n",Max,Min);
		while(Max>Min){
			int mid=(Max+Min)/2;
			vector<int> v=myask(mid);
		
			if(v[0]+v[1]==0)return mid;
			if(v[0]+v[1]!=Maxnum){
				Max=mid;
			}
			else{
				Maxm[v[0]]=max(Maxm[v[0]],mid);
				if(v[0]-num)Max=mid-1;
				else Min=mid+1;
			}
		}
		num++;
		Maxm[num]=max(Maxm[num],Max);
		vector<int> v=myask(Max);
		if(v[0]+v[1]==0)return Max;
	//	printf("? %d %d %d\n",v[0],v[1],num);
		l=Maxm[num]+1;
	}
	/*
	int Max=n-1,Min=0;
	while(Max>Min){
		int mid=(Max+Min)/2;
		vector<int> v=ask(mid);
		if(v[0]+v[1]==0){
			return mid;
		}
		if(v[0]<v[1]){
			Min=mid+1;
		}
		else{
			Max=mid-1;
		}
	}
	return Min;*/
}
# Verdict Execution time Memory Grader output
1 Correct 7 ms 5128 KB Output is correct
2 Correct 9 ms 4992 KB Output is correct
3 Correct 9 ms 4992 KB Output is correct
4 Correct 9 ms 5096 KB Output is correct
5 Correct 9 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 8 ms 4992 KB Output is correct
8 Correct 6 ms 5212 KB Output is correct
9 Correct 9 ms 4992 KB Output is correct
10 Correct 11 ms 4992 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 8 ms 4992 KB Output is correct
2 Correct 6 ms 5128 KB Output is correct
3 Correct 11 ms 4992 KB Output is correct
4 Correct 9 ms 5112 KB Output is correct
5 Correct 8 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 10 ms 4992 KB Output is correct
8 Correct 9 ms 4992 KB Output is correct
9 Correct 12 ms 4992 KB Output is correct
10 Correct 9 ms 4992 KB Output is correct
11 Correct 8 ms 5144 KB Output is correct
12 Correct 10 ms 4992 KB Output is correct
13 Correct 10 ms 5092 KB Output is correct
14 Correct 12 ms 4992 KB Output is correct
15 Correct 14 ms 5160 KB Output is correct
16 Partially correct 59 ms 5280 KB Partially correct - number of queries: 6600
17 Correct 6 ms 5128 KB Output is correct
18 Partially correct 89 ms 5348 KB Partially correct - number of queries: 7657
19 Correct 6 ms 5128 KB Output is correct
20 Correct 27 ms 5112 KB Output is correct
21 Correct 40 ms 5112 KB Output is correct
22 Correct 15 ms 4992 KB Output is correct
23 Correct 7 ms 5188 KB Output is correct
24 Correct 10 ms 4992 KB Output is correct
25 Correct 40 ms 5176 KB Output is correct
26 Correct 54 ms 5216 KB Output is correct
27 Correct 10 ms 4992 KB Output is correct
28 Partially correct 64 ms 5376 KB Partially correct - number of queries: 7413
29 Partially correct 34 ms 5296 KB Partially correct - number of queries: 5772
30 Partially correct 75 ms 5272 KB Partially correct - number of queries: 7596
31 Correct 11 ms 4992 KB Output is correct
32 Correct 13 ms 5196 KB Output is correct
33 Correct 3 ms 4992 KB Output is correct
34 Correct 25 ms 5264 KB Output is correct
35 Correct 12 ms 4992 KB Output is correct
36 Correct 32 ms 5112 KB Output is correct
37 Correct 12 ms 4992 KB Output is correct
38 Correct 10 ms 4992 KB Output is correct
39 Correct 39 ms 5112 KB Output is correct
40 Partially correct 79 ms 5240 KB Partially correct - number of queries: 6568
41 Correct 66 ms 5240 KB Output is correct
42 Correct 60 ms 5112 KB Output is correct
43 Correct 40 ms 5112 KB Output is correct
44 Correct 42 ms 5240 KB Output is correct
45 Correct 32 ms 5112 KB Output is correct
46 Correct 7 ms 4992 KB Output is correct
47 Correct 53 ms 5112 KB Output is correct
48 Partially correct 52 ms 5240 KB Partially correct - number of queries: 5813
49 Correct 9 ms 5140 KB Output is correct
50 Partially correct 68 ms 5368 KB Partially correct - number of queries: 7652
51 Correct 52 ms 5248 KB Output is correct
52 Correct 10 ms 5056 KB Output is correct
53 Correct 9 ms 4992 KB Output is correct
54 Correct 32 ms 5112 KB Output is correct
55 Correct 12 ms 4968 KB Output is correct
56 Partially correct 70 ms 5240 KB Partially correct - number of queries: 7679
57 Partially correct 74 ms 5240 KB Partially correct - number of queries: 5705
58 Partially correct 68 ms 5240 KB Partially correct - number of queries: 5814
59 Correct 44 ms 5112 KB Output is correct
60 Correct 56 ms 5112 KB Output is correct
61 Correct 11 ms 4992 KB Output is correct
62 Correct 9 ms 4992 KB Output is correct
63 Correct 11 ms 5152 KB Output is correct
64 Correct 10 ms 4992 KB Output is correct
65 Correct 13 ms 4992 KB Output is correct
66 Correct 14 ms 4992 KB Output is correct
67 Correct 9 ms 4992 KB Output is correct
68 Correct 7 ms 4992 KB Output is correct
69 Correct 16 ms 4992 KB Output is correct
70 Correct 9 ms 5120 KB Output is correct
71 Partially correct 58 ms 5440 KB Partially correct - number of queries: 7848
72 Correct 14 ms 4992 KB Output is correct
73 Partially correct 89 ms 5240 KB Partially correct - number of queries: 7709
74 Partially correct 71 ms 5436 KB Partially correct - number of queries: 7795
75 Correct 11 ms 4992 KB Output is correct
76 Partially correct 90 ms 5240 KB Partially correct - number of queries: 6830
77 Partially correct 56 ms 5268 KB Partially correct - number of queries: 7599
78 Correct 17 ms 4992 KB Output is correct
79 Correct 37 ms 5112 KB Output is correct
80 Partially correct 73 ms 5244 KB Partially correct - number of queries: 7603
81 Partially correct 70 ms 5240 KB Partially correct - number of queries: 7637
82 Partially correct 43 ms 5264 KB Partially correct - number of queries: 7491
83 Correct 10 ms 4992 KB Output is correct
84 Partially correct 71 ms 5240 KB Partially correct - number of queries: 6330
85 Partially correct 93 ms 5348 KB Partially correct - number of queries: 7685
86 Correct 47 ms 5156 KB Output is correct
87 Correct 12 ms 4992 KB Output is correct
88 Correct 33 ms 5240 KB Output is correct
89 Correct 62 ms 5120 KB Output is correct
90 Correct 11 ms 4992 KB Output is correct
91 Correct 31 ms 5240 KB Output is correct
92 Correct 40 ms 5112 KB Output is correct
93 Correct 55 ms 5240 KB Output is correct
94 Correct 49 ms 5268 KB Output is correct
95 Correct 46 ms 5112 KB Output is correct
96 Correct 54 ms 5200 KB Output is correct
97 Correct 24 ms 5184 KB Output is correct