Submission #129595

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
129595	2019-07-12T17:25:48 Z	Masterdan	The Big Prize (IOI17_prize)	C++14	90 / 100	100 ms	2188 KB

prize

#include "prize.h"
#include <bits/stdc++.h>
#define MIN -1
#define MAX 1000000000
#define all(a)  a.begin (), a.end ()
#define mp  make_pair
#define pb  push_back
using namespace std;
typedef vector <int> vi;
typedef long long int ll;
typedef pair <int, int> ii;
pair<int, int> v[201000];
bool aux[200100];
pair<int, int> visitado(int pos){
    if (aux[pos]){
        return v[pos];
    }
    aux[pos] = 1;
    vector <int> v1 = ask(pos);
    return v[pos] = {v1[0], v1[1]};
}

int find_best(int n) {
    int mx = MIN;
    int mxpos = 0;
    for (int i = 0; i < min(474, n); i++){
        pair<int, int> v = visitado(i);
        if (v.first+v.second == 0)
            return i;
        if (v.first + v.second > mx){
            mx = v.first + v.second;
            mxpos = i;
        }
    }
    int aux1 = mxpos;
    while(1){
        int l = aux1+1, r = n;
        while(l < r){
            int mid = (l+r)/2;
            pair<int, int> v = visitado(mid);
            if (v.first+v.second == 0)return mid;
            if (v != visitado(aux1))
                r = mid; else
                l = mid+1;
        }
        aux1 = l;
        while(aux1 < n){
            if (visitado(aux1).first + visitado(aux1).second == visitado(mxpos).first+visitado(mxpos).second)
                break;
            if (visitado(aux1).first + visitado(aux1).second == 0)
                return aux1;
            aux1++;
        }
    }
}
/*
using namespace std;

static const int max_q = 10000;
static int n;
static int query_count = 0;
static vector<int> g;
static vector<vector<int> > rank_count;

vector<int> ask(int i) {
	query_count++;
	if(query_count > max_q) {
		cerr << "Query limit exceeded" << endl;
		exit(0);
	}

	if(i < 0 || i >= n) {
		cerr << "Bad index: " << i << endl;
		exit(0);
	}

	vector<int> res(2);
	res[0] = rank_count[g[i] - 1][i + 1];
	res[1] = rank_count[g[i] - 1][n] - res[0];
	return res;
}

int main() {
	cin >> n;

	g.resize(n);
	for(int i = 0; i < n; i++) {
		cin >> g[i];
		if(g[i] < 1) {
			cerr << "Invalid rank " << g[i] << " at index " << i << endl;
			exit(0);
		}
	}

	int max_rank = *max_element(g.begin(), g.end());

	rank_count.resize(max_rank + 1, vector<int>(n + 1, 0));
	for(int r = 0; r <= max_rank; r++) {
		for(int i = 1; i <= n; i++) {
			rank_count[r][i] = rank_count[r][i - 1];
			if(g[i - 1] == r)
			  rank_count[r][i]++;
		}
	}

	for(int i = 0; i <= n; i++)
		for(int r = 1; r <= max_rank; r++)
			rank_count[r][i] += rank_count[r - 1][i];

	int res = find_best(n);
	cout << res << endl << "Query count: " << query_count << endl;

	return 0;
}
*/

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	392 KB	Output is correct
2	Correct	4 ms	392 KB	Output is correct
3	Correct	7 ms	376 KB	Output is correct
4	Correct	8 ms	376 KB	Output is correct
5	Correct	7 ms	308 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	7 ms	248 KB	Output is correct
8	Correct	7 ms	248 KB	Output is correct
9	Correct	4 ms	396 KB	Output is correct
10	Correct	9 ms	376 KB	Output is correct

Subtask #2

70.0 / 80.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	460 KB	Output is correct
2	Correct	6 ms	376 KB	Output is correct
3	Correct	4 ms	392 KB	Output is correct
4	Correct	7 ms	376 KB	Output is correct
5	Correct	4 ms	392 KB	Output is correct
6	Correct	2 ms	320 KB	Output is correct
7	Correct	4 ms	392 KB	Output is correct
8	Correct	4 ms	328 KB	Output is correct
9	Correct	7 ms	332 KB	Output is correct
10	Correct	7 ms	248 KB	Output is correct
11	Correct	6 ms	832 KB	Output is correct
12	Correct	5 ms	520 KB	Output is correct
13	Correct	11 ms	1272 KB	Output is correct
14	Correct	10 ms	376 KB	Output is correct
15	Correct	18 ms	1092 KB	Output is correct
16	Partially correct	87 ms	1840 KB	Partially correct - number of queries: 7129
17	Correct	6 ms	248 KB	Output is correct
18	Partially correct	90 ms	1972 KB	Partially correct - number of queries: 8288
19	Correct	9 ms	276 KB	Output is correct
20	Correct	26 ms	888 KB	Output is correct
21	Correct	37 ms	1408 KB	Output is correct
22	Correct	13 ms	908 KB	Output is correct
23	Correct	5 ms	412 KB	Output is correct
24	Correct	8 ms	376 KB	Output is correct
25	Correct	50 ms	1576 KB	Output is correct
26	Correct	49 ms	1656 KB	Output is correct
27	Correct	5 ms	524 KB	Output is correct
28	Partially correct	77 ms	2160 KB	Partially correct - number of queries: 7836
29	Partially correct	47 ms	2024 KB	Partially correct - number of queries: 6048
30	Partially correct	79 ms	2016 KB	Partially correct - number of queries: 8218
31	Correct	6 ms	512 KB	Output is correct
32	Correct	12 ms	1212 KB	Output is correct
33	Correct	2 ms	404 KB	Output is correct
34	Correct	18 ms	1380 KB	Output is correct
35	Correct	8 ms	632 KB	Output is correct
36	Correct	23 ms	1272 KB	Output is correct
37	Correct	10 ms	504 KB	Output is correct
38	Correct	7 ms	376 KB	Output is correct
39	Correct	44 ms	1516 KB	Output is correct
40	Partially correct	66 ms	2048 KB	Partially correct - number of queries: 7104
41	Partially correct	42 ms	1656 KB	Partially correct - number of queries: 5155
42	Partially correct	46 ms	1624 KB	Partially correct - number of queries: 5155
43	Correct	39 ms	1648 KB	Output is correct
44	Correct	56 ms	1528 KB	Output is correct
45	Correct	29 ms	1336 KB	Output is correct
46	Correct	6 ms	396 KB	Output is correct
47	Correct	34 ms	1540 KB	Output is correct
48	Partially correct	66 ms	1704 KB	Partially correct - number of queries: 6274
49	Correct	13 ms	696 KB	Output is correct
50	Partially correct	86 ms	2100 KB	Partially correct - number of queries: 8272
51	Correct	22 ms	1596 KB	Output is correct
52	Correct	7 ms	504 KB	Output is correct
53	Correct	8 ms	632 KB	Output is correct
54	Correct	45 ms	1528 KB	Output is correct
55	Correct	5 ms	404 KB	Output is correct
56	Partially correct	100 ms	1980 KB	Partially correct - number of queries: 8262
57	Partially correct	63 ms	1724 KB	Partially correct - number of queries: 6161
58	Partially correct	35 ms	1784 KB	Partially correct - number of queries: 6226
59	Partially correct	41 ms	1588 KB	Partially correct - number of queries: 5154
60	Correct	49 ms	1624 KB	Output is correct
61	Correct	9 ms	652 KB	Output is correct
62	Correct	7 ms	300 KB	Output is correct
63	Correct	5 ms	652 KB	Output is correct
64	Correct	4 ms	520 KB	Output is correct
65	Correct	8 ms	376 KB	Output is correct
66	Correct	13 ms	404 KB	Output is correct
67	Correct	6 ms	312 KB	Output is correct
68	Correct	4 ms	456 KB	Output is correct
69	Correct	14 ms	376 KB	Output is correct
70	Correct	5 ms	408 KB	Output is correct
71	Partially correct	87 ms	1960 KB	Partially correct - number of queries: 8285
72	Correct	15 ms	1272 KB	Output is correct
73	Partially correct	56 ms	2040 KB	Partially correct - number of queries: 8171
74	Partially correct	46 ms	2188 KB	Partially correct - number of queries: 8205
75	Correct	9 ms	632 KB	Output is correct
76	Partially correct	70 ms	2060 KB	Partially correct - number of queries: 7105
77	Partially correct	65 ms	2184 KB	Partially correct - number of queries: 8327
78	Correct	14 ms	1272 KB	Output is correct
79	Correct	44 ms	1960 KB	Output is correct
80	Partially correct	83 ms	2136 KB	Partially correct - number of queries: 8335
81	Partially correct	95 ms	2040 KB	Partially correct - number of queries: 8345
82	Partially correct	94 ms	2020 KB	Partially correct - number of queries: 8247
83	Correct	9 ms	632 KB	Output is correct
84	Partially correct	83 ms	2040 KB	Partially correct - number of queries: 6870
85	Partially correct	46 ms	2048 KB	Partially correct - number of queries: 8325
86	Correct	6 ms	376 KB	Output is correct
87	Correct	5 ms	384 KB	Output is correct
88	Correct	8 ms	376 KB	Output is correct
89	Correct	6 ms	376 KB	Output is correct
90	Correct	6 ms	376 KB	Output is correct
91	Correct	7 ms	376 KB	Output is correct
92	Correct	7 ms	376 KB	Output is correct
93	Correct	10 ms	1064 KB	Output is correct
94	Correct	14 ms	1144 KB	Output is correct
95	Correct	11 ms	1020 KB	Output is correct
96	Correct	13 ms	1020 KB	Output is correct
97	Correct	8 ms	376 KB	Output is correct