Submission #35522

# Submission time Handle Problem Language Result Execution time Memory
35522 2017-11-24T00:45:07 Z kdh9949 The Big Prize (IOI17_prize) C++14
100 / 100
49 ms 4360 KB
#include "prize.h"
using namespace std;

using pii = pair<int, int>;
#define X first
#define Y second

const int MN = 200000, MC = 500;
int cnt, tot, chk[MN], dia;
pii dat[MN];

pii get(int x){
	if(chk[x]) return dat[x];
	chk[x] = 1;
	vector<int> v = ask(x);
	dat[x] = pii(v[0], v[1]);
	if(v[0] + v[1] == 0) dia = x;
	tot = max(tot, v[0] + v[1]);
	return dat[x];
}

void pre(int s, int e){
	if(cnt == MC) return;
	int m = (s + e) / 2;
	get(m); cnt++;
	if(s == e) return;
	pre(s, m);
	pre(m + 1, e);
}

void dnc(int s, int e, int lc, int mc, int rc){
	if(mc == 0) return;
	if(s == e){
		get(s);
		return;
	}
	int m = (s + e) / 2;
	int mmc = 0;
	for(int i = m; i >= s; i--){
		pii t = get(i);
		if(t.X + t.Y == tot){
			mmc += t.X - lc;
			break;
		}
		mmc++;
	}
	dnc(s, m, lc, mmc, rc + mc - mmc);
	dnc(m + 1, e, lc + mmc, mc - mmc, rc);
}

int find_best(int n) {
	pre(0, n - 1);
	dnc(0, n - 1, 0, tot, 0);
	return dia;
}
# Verdict Execution time Memory Grader output
1 Correct 6 ms 4360 KB Output is correct
2 Correct 3 ms 4360 KB Output is correct
3 Correct 3 ms 4360 KB Output is correct
4 Correct 3 ms 4360 KB Output is correct
5 Correct 3 ms 4360 KB Output is correct
6 Correct 0 ms 4360 KB Output is correct
7 Correct 0 ms 4360 KB Output is correct
8 Correct 3 ms 4360 KB Output is correct
9 Correct 0 ms 4360 KB Output is correct
10 Correct 3 ms 4360 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 4360 KB Output is correct
2 Correct 0 ms 4360 KB Output is correct
3 Correct 3 ms 4360 KB Output is correct
4 Correct 0 ms 4360 KB Output is correct
5 Correct 3 ms 4360 KB Output is correct
6 Correct 3 ms 4360 KB Output is correct
7 Correct 3 ms 4360 KB Output is correct
8 Correct 0 ms 4360 KB Output is correct
9 Correct 3 ms 4360 KB Output is correct
10 Correct 6 ms 4360 KB Output is correct
11 Correct 6 ms 4360 KB Output is correct
12 Correct 0 ms 4360 KB Output is correct
13 Correct 6 ms 4360 KB Output is correct
14 Correct 3 ms 4360 KB Output is correct
15 Correct 13 ms 4360 KB Output is correct
16 Correct 29 ms 4360 KB Output is correct
17 Correct 19 ms 4360 KB Output is correct
18 Correct 33 ms 4360 KB Output is correct
19 Correct 6 ms 4360 KB Output is correct
20 Correct 9 ms 4360 KB Output is correct
21 Correct 3 ms 4360 KB Output is correct
22 Correct 26 ms 4360 KB Output is correct
23 Correct 0 ms 4360 KB Output is correct
24 Correct 3 ms 4360 KB Output is correct
25 Correct 16 ms 4360 KB Output is correct
26 Correct 9 ms 4360 KB Output is correct
27 Correct 3 ms 4360 KB Output is correct
28 Correct 33 ms 4360 KB Output is correct
29 Correct 26 ms 4360 KB Output is correct
30 Correct 6 ms 4360 KB Output is correct
31 Correct 6 ms 4360 KB Output is correct
32 Correct 3 ms 4360 KB Output is correct
33 Correct 0 ms 4360 KB Output is correct
34 Correct 43 ms 4360 KB Output is correct
35 Correct 0 ms 4360 KB Output is correct
36 Correct 23 ms 4360 KB Output is correct
37 Correct 3 ms 4360 KB Output is correct
38 Correct 3 ms 4360 KB Output is correct
39 Correct 6 ms 4360 KB Output is correct
40 Correct 19 ms 4360 KB Output is correct
41 Correct 13 ms 4360 KB Output is correct
42 Correct 13 ms 4360 KB Output is correct
43 Correct 29 ms 4360 KB Output is correct
44 Correct 23 ms 4360 KB Output is correct
45 Correct 19 ms 4360 KB Output is correct
46 Correct 13 ms 4360 KB Output is correct
47 Correct 23 ms 4360 KB Output is correct
48 Correct 13 ms 4360 KB Output is correct
49 Correct 33 ms 4360 KB Output is correct
50 Correct 23 ms 4360 KB Output is correct
51 Correct 16 ms 4360 KB Output is correct
52 Correct 6 ms 4360 KB Output is correct
53 Correct 0 ms 4360 KB Output is correct
54 Correct 26 ms 4360 KB Output is correct
55 Correct 9 ms 4360 KB Output is correct
56 Correct 33 ms 4360 KB Output is correct
57 Correct 36 ms 4360 KB Output is correct
58 Correct 16 ms 4360 KB Output is correct
59 Correct 19 ms 4360 KB Output is correct
60 Correct 19 ms 4360 KB Output is correct
61 Correct 9 ms 4360 KB Output is correct
62 Correct 0 ms 4360 KB Output is correct
63 Correct 3 ms 4360 KB Output is correct
64 Correct 0 ms 4360 KB Output is correct
65 Correct 0 ms 4360 KB Output is correct
66 Correct 16 ms 4360 KB Output is correct
67 Correct 6 ms 4360 KB Output is correct
68 Correct 3 ms 4360 KB Output is correct
69 Correct 0 ms 4360 KB Output is correct
70 Correct 9 ms 4360 KB Output is correct
71 Correct 19 ms 4360 KB Output is correct
72 Correct 6 ms 4360 KB Output is correct
73 Correct 13 ms 4360 KB Output is correct
74 Correct 33 ms 4360 KB Output is correct
75 Correct 0 ms 4360 KB Output is correct
76 Correct 23 ms 4360 KB Output is correct
77 Correct 16 ms 4360 KB Output is correct
78 Correct 0 ms 4360 KB Output is correct
79 Correct 16 ms 4360 KB Output is correct
80 Correct 26 ms 4360 KB Output is correct
81 Correct 49 ms 4360 KB Output is correct
82 Correct 39 ms 4360 KB Output is correct
83 Correct 3 ms 4360 KB Output is correct
84 Correct 19 ms 4360 KB Output is correct
85 Correct 29 ms 4360 KB Output is correct
86 Correct 6 ms 4360 KB Output is correct
87 Correct 0 ms 4360 KB Output is correct
88 Correct 0 ms 4360 KB Output is correct
89 Correct 3 ms 4360 KB Output is correct
90 Correct 0 ms 4360 KB Output is correct
91 Correct 6 ms 4360 KB Output is correct
92 Correct 9 ms 4360 KB Output is correct
93 Correct 0 ms 4360 KB Output is correct
94 Correct 0 ms 4360 KB Output is correct
95 Correct 6 ms 4360 KB Output is correct
96 Correct 0 ms 4360 KB Output is correct
97 Correct 0 ms 4360 KB Output is correct