답안 #390953

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
390953	2021-04-17T12:34:05 Z	alishahali1382	커다란 상품 (IOI17_prize)	C++14	97.6 / 100	67 ms	1864 KB

prize

#include "prize.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
#define debug(x) {cerr<<#x<<"="<<x<<"\n";}
#define debug2(x, y) {cerr<<#x<<", "<<#y<<" = "<<x<<", "<<y<<"\n";}
#define pb push_back
#define all(x) x.begin(), x.end()

const int inf=1000000100;
const int MAXN=200010;

int n, m, k, shit, ans=-1;
pii A[MAXN];

pii Ask(int i){
	if (A[i].first!=-1) return A[i];
	auto v=ask(i);
	A[i]={v[0], v[1]};
	return A[i];
}
int ord(int i){
	return Ask(i).first+Ask(i).second;
}
void divide(int tl, int tr, int ted){
	if (!ted || tr-tl<1 || ans!=-1) return ;
	int mid=(tl+tr)>>1;
	if (tr-tl>10000) mid-=200;
	for (int i=mid; i<tr && ted; i++){
		if (!ord(i)){
			ans=i;
			return ;
		}
		if (ord(i)!=shit){
			ted--;
			continue ;
		}
		int tedl=Ask(i).first-Ask(tl-1).first-(i-mid);
		divide(tl, mid, tedl);
		divide(i+1, tr, ted-tedl);
		return ;
	}
	divide(tl, mid, ted);
}

int find_best(int _n){
	memset(A, -1, sizeof(A));
	n=_n;/*
	if (n<5000){
		for (int i=0; i<n; i++)
			if (!ord(i)) return i;
		assert(0);
	}*/
	int T=480;
	for (int i=0; i<T; i++){
		if (!ord(i)) return i;
		shit=max(shit, ord(i));
	}
	for (int i=T; i<n; i++){
		if (!ord(i)) return i;
		if (ord(i)==shit){
			divide(i+1, n, Ask(i).second);
			return ans;
		}
	}
	assert(0);
}

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	1736 KB	Output is correct
2	Correct	4 ms	1828 KB	Output is correct
3	Correct	7 ms	1864 KB	Output is correct
4	Correct	5 ms	1832 KB	Output is correct
5	Correct	6 ms	1836 KB	Output is correct
6	Correct	1 ms	1828 KB	Output is correct
7	Correct	6 ms	1828 KB	Output is correct
8	Correct	7 ms	1824 KB	Output is correct
9	Correct	4 ms	1832 KB	Output is correct
10	Correct	7 ms	1864 KB	Output is correct

Subtask #2

77.6 / 80.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	1832 KB	Output is correct
2	Correct	8 ms	1832 KB	Output is correct
3	Correct	8 ms	1736 KB	Output is correct
4	Correct	4 ms	1828 KB	Output is correct
5	Correct	9 ms	1832 KB	Output is correct
6	Correct	1 ms	1856 KB	Output is correct
7	Correct	4 ms	1808 KB	Output is correct
8	Correct	6 ms	1864 KB	Output is correct
9	Correct	7 ms	1736 KB	Output is correct
10	Correct	6 ms	1736 KB	Output is correct
11	Correct	7 ms	1832 KB	Output is correct
12	Correct	4 ms	1856 KB	Output is correct
13	Correct	12 ms	1736 KB	Output is correct
14	Correct	6 ms	1736 KB	Output is correct
15	Correct	7 ms	1824 KB	Output is correct
16	Correct	36 ms	1728 KB	Output is correct
17	Correct	5 ms	1728 KB	Output is correct
18	Correct	56 ms	1728 KB	Output is correct
19	Correct	7 ms	1848 KB	Output is correct
20	Correct	13 ms	1736 KB	Output is correct
21	Correct	17 ms	1828 KB	Output is correct
22	Correct	9 ms	1736 KB	Output is correct
23	Correct	6 ms	1736 KB	Output is correct
24	Correct	4 ms	1824 KB	Output is correct
25	Correct	33 ms	1736 KB	Output is correct
26	Correct	31 ms	1736 KB	Output is correct
27	Correct	4 ms	1816 KB	Output is correct
28	Correct	52 ms	1832 KB	Output is correct
29	Correct	16 ms	1856 KB	Output is correct
30	Correct	22 ms	1820 KB	Output is correct
31	Correct	3 ms	1856 KB	Output is correct
32	Correct	11 ms	1828 KB	Output is correct
33	Correct	1 ms	1736 KB	Output is correct
34	Correct	17 ms	1728 KB	Output is correct
35	Correct	9 ms	1820 KB	Output is correct
36	Correct	14 ms	1820 KB	Output is correct
37	Correct	8 ms	1728 KB	Output is correct
38	Correct	4 ms	1828 KB	Output is correct
39	Correct	30 ms	1728 KB	Output is correct
40	Correct	49 ms	1828 KB	Output is correct
41	Correct	26 ms	1736 KB	Output is correct
42	Correct	40 ms	1736 KB	Output is correct
43	Correct	33 ms	1736 KB	Output is correct
44	Correct	11 ms	1828 KB	Output is correct
45	Correct	21 ms	1812 KB	Output is correct
46	Correct	7 ms	1736 KB	Output is correct
47	Correct	30 ms	1728 KB	Output is correct
48	Correct	18 ms	1856 KB	Output is correct
49	Correct	9 ms	1828 KB	Output is correct
50	Correct	22 ms	1824 KB	Output is correct
51	Correct	20 ms	1824 KB	Output is correct
52	Correct	6 ms	1824 KB	Output is correct
53	Correct	4 ms	1828 KB	Output is correct
54	Correct	30 ms	1728 KB	Output is correct
55	Correct	3 ms	1824 KB	Output is correct
56	Correct	23 ms	1824 KB	Output is correct
57	Correct	18 ms	1824 KB	Output is correct
58	Correct	33 ms	1736 KB	Output is correct
59	Correct	30 ms	1728 KB	Output is correct
60	Correct	37 ms	1816 KB	Output is correct
61	Correct	6 ms	1736 KB	Output is correct
62	Correct	8 ms	1736 KB	Output is correct
63	Correct	7 ms	1736 KB	Output is correct
64	Correct	9 ms	1736 KB	Output is correct
65	Correct	8 ms	1736 KB	Output is correct
66	Correct	13 ms	1828 KB	Output is correct
67	Correct	12 ms	1728 KB	Output is correct
68	Correct	6 ms	1832 KB	Output is correct
69	Correct	6 ms	1828 KB	Output is correct
70	Correct	10 ms	1728 KB	Output is correct
71	Partially correct	44 ms	1736 KB	Partially correct - number of queries: 5240
72	Correct	9 ms	1736 KB	Output is correct
73	Partially correct	58 ms	1864 KB	Partially correct - number of queries: 5177
74	Partially correct	67 ms	1736 KB	Partially correct - number of queries: 5204
75	Correct	10 ms	1736 KB	Output is correct
76	Correct	58 ms	1736 KB	Output is correct
77	Correct	43 ms	1736 KB	Output is correct
78	Correct	13 ms	1736 KB	Output is correct
79	Correct	28 ms	1736 KB	Output is correct
80	Correct	23 ms	1828 KB	Output is correct
81	Correct	60 ms	1736 KB	Output is correct
82	Correct	30 ms	1864 KB	Output is correct
83	Correct	6 ms	1736 KB	Output is correct
84	Correct	53 ms	1736 KB	Output is correct
85	Correct	60 ms	1832 KB	Output is correct
86	Correct	7 ms	1864 KB	Output is correct
87	Correct	8 ms	1736 KB	Output is correct
88	Correct	8 ms	1736 KB	Output is correct
89	Correct	7 ms	1864 KB	Output is correct
90	Correct	9 ms	1736 KB	Output is correct
91	Correct	7 ms	1736 KB	Output is correct
92	Correct	6 ms	1736 KB	Output is correct
93	Correct	11 ms	1736 KB	Output is correct
94	Correct	10 ms	1740 KB	Output is correct
95	Correct	11 ms	1740 KB	Output is correct
96	Correct	5 ms	1864 KB	Output is correct
97	Correct	7 ms	1736 KB	Output is correct