Submission #390947

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
390947	2021-04-17T12:29:52 Z	alishahali1382	The Big Prize (IOI17_prize)	C++14	97.6 / 100	70 ms	1924 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;
	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(i+1, tr, ted-tedl);
		divide(tl, mid, 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	1832 KB	Output is correct
2	Correct	8 ms	1832 KB	Output is correct
3	Correct	9 ms	1832 KB	Output is correct
4	Correct	6 ms	1828 KB	Output is correct
5	Correct	4 ms	1824 KB	Output is correct
6	Correct	1 ms	1732 KB	Output is correct
7	Correct	8 ms	1820 KB	Output is correct
8	Correct	8 ms	1828 KB	Output is correct
9	Correct	8 ms	1832 KB	Output is correct
10	Correct	8 ms	1736 KB	Output is correct

Subtask #2

77.6 / 80.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	1828 KB	Output is correct
2	Correct	7 ms	1728 KB	Output is correct
3	Correct	7 ms	1736 KB	Output is correct
4	Correct	9 ms	1828 KB	Output is correct
5	Correct	4 ms	1856 KB	Output is correct
6	Correct	1 ms	1736 KB	Output is correct
7	Correct	8 ms	1832 KB	Output is correct
8	Correct	3 ms	1832 KB	Output is correct
9	Correct	7 ms	1736 KB	Output is correct
10	Correct	6 ms	1736 KB	Output is correct
11	Correct	5 ms	1856 KB	Output is correct
12	Correct	5 ms	1824 KB	Output is correct
13	Correct	4 ms	1828 KB	Output is correct
14	Correct	18 ms	1924 KB	Output is correct
15	Correct	35 ms	1864 KB	Output is correct
16	Correct	16 ms	1736 KB	Output is correct
17	Correct	7 ms	1824 KB	Output is correct
18	Correct	7 ms	1728 KB	Output is correct
19	Correct	6 ms	1728 KB	Output is correct
20	Correct	28 ms	1736 KB	Output is correct
21	Correct	46 ms	1824 KB	Output is correct
22	Correct	45 ms	1824 KB	Output is correct
23	Correct	4 ms	1812 KB	Output is correct
24	Correct	14 ms	1828 KB	Output is correct
25	Correct	28 ms	1728 KB	Output is correct
26	Correct	12 ms	1824 KB	Output is correct
27	Correct	4 ms	1828 KB	Output is correct
28	Correct	9 ms	1728 KB	Output is correct
29	Correct	5 ms	1820 KB	Output is correct
30	Correct	6 ms	1728 KB	Output is correct
31	Correct	6 ms	1736 KB	Output is correct
32	Correct	10 ms	1736 KB	Output is correct
33	Correct	1 ms	1736 KB	Output is correct
34	Correct	17 ms	1828 KB	Output is correct
35	Correct	8 ms	1836 KB	Output is correct
36	Correct	43 ms	1824 KB	Output is correct
37	Correct	5 ms	1824 KB	Output is correct
38	Correct	9 ms	1736 KB	Output is correct
39	Correct	32 ms	1728 KB	Output is correct
40	Correct	7 ms	1824 KB	Output is correct
41	Correct	18 ms	1728 KB	Output is correct
42	Correct	22 ms	1820 KB	Output is correct
43	Correct	13 ms	1856 KB	Output is correct
44	Correct	41 ms	1736 KB	Output is correct
45	Correct	40 ms	1728 KB	Output is correct
46	Correct	6 ms	1832 KB	Output is correct
47	Correct	28 ms	1828 KB	Output is correct
48	Correct	11 ms	1820 KB	Output is correct
49	Correct	48 ms	1832 KB	Output is correct
50	Correct	8 ms	1736 KB	Output is correct
51	Correct	25 ms	1864 KB	Output is correct
52	Correct	64 ms	1824 KB	Output is correct
53	Correct	8 ms	1832 KB	Output is correct
54	Correct	45 ms	1832 KB	Output is correct
55	Correct	4 ms	1828 KB	Output is correct
56	Correct	4 ms	1832 KB	Output is correct
57	Correct	30 ms	1832 KB	Output is correct
58	Correct	24 ms	1820 KB	Output is correct
59	Correct	12 ms	1856 KB	Output is correct
60	Correct	24 ms	1736 KB	Output is correct
61	Correct	6 ms	1824 KB	Output is correct
62	Correct	8 ms	1828 KB	Output is correct
63	Correct	7 ms	1728 KB	Output is correct
64	Correct	7 ms	1816 KB	Output is correct
65	Correct	9 ms	1828 KB	Output is correct
66	Correct	9 ms	1736 KB	Output is correct
67	Correct	14 ms	1832 KB	Output is correct
68	Correct	6 ms	1736 KB	Output is correct
69	Correct	5 ms	1860 KB	Output is correct
70	Correct	5 ms	1856 KB	Output is correct
71	Partially correct	70 ms	1736 KB	Partially correct - number of queries: 5240
72	Correct	11 ms	1736 KB	Output is correct
73	Partially correct	52 ms	1736 KB	Partially correct - number of queries: 5177
74	Partially correct	40 ms	1736 KB	Partially correct - number of queries: 5204
75	Correct	10 ms	1740 KB	Output is correct
76	Correct	41 ms	1736 KB	Output is correct
77	Correct	58 ms	1736 KB	Output is correct
78	Correct	9 ms	1832 KB	Output is correct
79	Correct	35 ms	1736 KB	Output is correct
80	Correct	46 ms	1832 KB	Output is correct
81	Correct	39 ms	1736 KB	Output is correct
82	Correct	44 ms	1736 KB	Output is correct
83	Correct	10 ms	1736 KB	Output is correct
84	Correct	43 ms	1832 KB	Output is correct
85	Correct	43 ms	1836 KB	Output is correct
86	Correct	8 ms	1864 KB	Output is correct
87	Correct	9 ms	1740 KB	Output is correct
88	Correct	8 ms	1736 KB	Output is correct
89	Correct	8 ms	1736 KB	Output is correct
90	Correct	7 ms	1920 KB	Output is correct
91	Correct	5 ms	1736 KB	Output is correct
92	Correct	8 ms	1736 KB	Output is correct
93	Correct	5 ms	1864 KB	Output is correct
94	Correct	11 ms	1736 KB	Output is correct
95	Correct	11 ms	1736 KB	Output is correct
96	Correct	10 ms	1740 KB	Output is correct
97	Correct	8 ms	1736 KB	Output is correct