oj.uz

Submission #412635

# Submission time Handle Problem Language Result Execution time Memory
412635 2021-05-27T08:53:34 Z nxteru The Big Prize (IOI17_prize) C++14
100 / 100
 66 ms 1864 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
int ma,mma;
pair<int,int> ret[200005];
int lt(int i){
	if(ret[i].first==-1){
		vector<int>x=ask(i);
		ret[i]=make_pair(x[0],x[1]);
	}
	return ret[i].first;
}
int rt(int i){
	if(ret[i].second==-1){
		vector<int>x=ask(i);
		ret[i]=make_pair(x[0],x[1]);
	}
	return ret[i].second;
}
int ss(int i){
	return lt(i)+rt(i);
}
int type(int i){
	int x=ss(i);
	if(x==0)return i;
	else if(ma<x){
		mma=x;
		return -1;
	}else if(ma==x)return -2;
	else return -3;
}
void left(int l,int &i){
	while(l<=i&&type(i)==-3)i--;
}
void right(int r,int &i){
	while(i<=r&&type(i)==-3)i++;
}
int solve(int l,int r,int s,int t){
	if(r<l)return -3;
	if(l==r)return type(l);
	int ml=(l+r)/2,mr=ml;
	left(l,ml);
	int res=-3;
	if(l<=ml&&type(ml)>=-1)return type(ml);
	if(l<ml&&s-rt(ml)>0)res=solve(l,ml-1,s,rt(ml));
	if(res>=-1)return res;
	right(r,mr);
	if(mr<=r&&type(mr)>=-1)return type(mr);
	if(mr<r&&rt(mr)-t>0)res=solve(mr+1,r,rt(mr),t);
	return res;
}
int find_best(int n){
	for(int i=0;i<n;i++)ret[i]=make_pair(-1,-1);
	for(int i=0;i<100;i++){
		if(type(i)>=0)return type(i);
		ma=mma;
	}
	while(1){
		ma=mma;
		int la=100;
		right(n-1,la);
		if(type(la)>=0)return type(la);
		if(type(la)==-1)continue;
		while(1){
			int pl=min(la+256,n-1),pr=pl;
			left(la,pl);
			if(type(pl)>=0)return type(pl);
			if(type(pl)==-1)break;
			int res=solve(la+1,pl-1,rt(la),rt(pl));
			if(res>=0)return res;
			if(res==-1)break;
			right(n-1,pr);
			if(type(pr)>=0)return type(pr);
			if(type(pr)==-1)return -1;
			la=pr;
		}
	}
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1804 KB Output is correct
2 Correct 15 ms 1828 KB Output is correct
3 Correct 6 ms 1828 KB Output is correct
4 Correct 9 ms 1832 KB Output is correct
5 Correct 10 ms 1820 KB Output is correct
6 Correct 2 ms 1736 KB Output is correct
7 Correct 11 ms 1832 KB Output is correct
8 Correct 6 ms 1856 KB Output is correct
9 Correct 10 ms 1736 KB Output is correct
10 Correct 22 ms 1736 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1824 KB Output is correct
2 Correct 7 ms 1824 KB Output is correct
3 Correct 13 ms 1728 KB Output is correct
4 Correct 9 ms 1856 KB Output is correct
5 Correct 10 ms 1736 KB Output is correct
6 Correct 2 ms 1736 KB Output is correct
7 Correct 10 ms 1828 KB Output is correct
8 Correct 9 ms 1736 KB Output is correct
9 Correct 13 ms 1736 KB Output is correct
10 Correct 23 ms 1736 KB Output is correct
11 Correct 6 ms 1832 KB Output is correct
12 Correct 2 ms 1856 KB Output is correct
13 Correct 23 ms 1736 KB Output is correct
14 Correct 3 ms 456 KB Output is correct
15 Correct 12 ms 1736 KB Output is correct
16 Correct 20 ms 1828 KB Output is correct
17 Correct 3 ms 1736 KB Output is correct
18 Correct 46 ms 1824 KB Output is correct
19 Correct 3 ms 1832 KB Output is correct
20 Correct 7 ms 1096 KB Output is correct
21 Correct 22 ms 1736 KB Output is correct
22 Correct 8 ms 1832 KB Output is correct
23 Correct 5 ms 1832 KB Output is correct
24 Correct 3 ms 1824 KB Output is correct
25 Correct 33 ms 1728 KB Output is correct
26 Correct 28 ms 1736 KB Output is correct
27 Correct 8 ms 1828 KB Output is correct
28 Correct 64 ms 1736 KB Output is correct
29 Correct 53 ms 1828 KB Output is correct
30 Correct 32 ms 1824 KB Output is correct
31 Correct 3 ms 1736 KB Output is correct
32 Correct 12 ms 1820 KB Output is correct
33 Correct 1 ms 200 KB Output is correct
34 Correct 15 ms 1828 KB Output is correct
35 Correct 16 ms 1736 KB Output is correct
36 Correct 17 ms 1736 KB Output is correct
37 Correct 7 ms 1736 KB Output is correct
38 Correct 3 ms 1828 KB Output is correct
39 Correct 12 ms 1856 KB Output is correct
40 Correct 25 ms 1812 KB Output is correct
41 Correct 39 ms 1736 KB Output is correct
42 Correct 41 ms 1824 KB Output is correct
43 Correct 34 ms 1736 KB Output is correct
44 Correct 11 ms 1848 KB Output is correct
45 Correct 17 ms 1728 KB Output is correct
46 Correct 2 ms 1820 KB Output is correct
47 Correct 28 ms 1812 KB Output is correct
48 Correct 45 ms 1736 KB Output is correct
49 Correct 4 ms 1828 KB Output is correct
50 Correct 40 ms 1728 KB Output is correct
51 Correct 25 ms 1728 KB Output is correct
52 Correct 4 ms 1824 KB Output is correct
53 Correct 10 ms 1820 KB Output is correct
54 Correct 22 ms 1736 KB Output is correct
55 Correct 3 ms 1736 KB Output is correct
56 Correct 60 ms 1736 KB Output is correct
57 Correct 46 ms 1736 KB Output is correct
58 Correct 32 ms 1824 KB Output is correct
59 Correct 38 ms 1836 KB Output is correct
60 Correct 13 ms 1828 KB Output is correct
61 Correct 15 ms 1736 KB Output is correct
62 Correct 4 ms 1836 KB Output is correct
63 Correct 18 ms 1832 KB Output is correct
64 Correct 15 ms 1736 KB Output is correct
65 Correct 9 ms 1824 KB Output is correct
66 Correct 18 ms 1860 KB Output is correct
67 Correct 24 ms 1824 KB Output is correct
68 Correct 8 ms 1828 KB Output is correct
69 Correct 26 ms 1736 KB Output is correct
70 Correct 24 ms 1736 KB Output is correct
71 Correct 35 ms 1736 KB Output is correct
72 Correct 26 ms 1736 KB Output is correct
73 Correct 56 ms 1736 KB Output is correct
74 Correct 55 ms 1736 KB Output is correct
75 Correct 13 ms 1736 KB Output is correct
76 Correct 44 ms 1736 KB Output is correct
77 Correct 47 ms 1736 KB Output is correct
78 Correct 26 ms 1736 KB Output is correct
79 Correct 35 ms 1736 KB Output is correct
80 Correct 66 ms 1736 KB Output is correct
81 Correct 57 ms 1736 KB Output is correct
82 Correct 65 ms 1736 KB Output is correct
83 Correct 17 ms 1836 KB Output is correct
84 Correct 39 ms 1828 KB Output is correct
85 Correct 47 ms 1736 KB Output is correct
86 Correct 18 ms 1736 KB Output is correct
87 Correct 22 ms 1736 KB Output is correct
88 Correct 11 ms 1864 KB Output is correct
89 Correct 19 ms 1736 KB Output is correct
90 Correct 17 ms 1736 KB Output is correct
91 Correct 25 ms 1736 KB Output is correct
92 Correct 19 ms 1736 KB Output is correct
93 Correct 44 ms 1736 KB Output is correct
94 Correct 55 ms 1736 KB Output is correct
95 Correct 40 ms 1736 KB Output is correct
96 Correct 58 ms 1736 KB Output is correct
97 Correct 20 ms 1864 KB Output is correct