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답안 #1048465

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1048465 2024-08-08T07:47:42 Z pcc 커다란 상품 (IOI17_prize) C++17
20 / 100
 115 ms 6336 KB 
#include "prize.h"
#include <bits/stdc++.h>
#include <bits/extc++.h>
using namespace __gnu_pbds;
using namespace std;

template <typename T>
using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
#define pii pair<int,int>
#define fs first
#define sc second

#ifdef LOCAL
const int lim = 3;
const int dt = 5;
#else
const int lim = 5000;
const int dt = 330;
#endif

const int mxn = 2e5+10;
pii dp[mxn];
int N;
int big = 1e9;
int ans = 0;
bool done = false;
int C = 0;
ordered_set<int> st;

pii req(int p){
	if(dp[p].fs != -1)return dp[p];
	C++;
	assert(C<=10000);
	auto re = ask(p);
	return (dp[p] = pii(re[0],re[1]));
}

int check(int p){
	auto re = req(p);
	if(!re.fs&&!re.sc)return 0;
	else if(N-re.fs-re.sc == big)return 2;
	else{
		st.insert(p);
		return 1;
	}
}

void dfs(int l,int r){
	if(done)return;
	cerr<<"DFS: "<<l<<','<<r<<endl;
	while(l<=r){
		if(!check(l)){
			ans = l;
			done = true;
			return;
		}
		else if(check(l) == 1){
			l++;
		}
		else break;
	}
	while(l<=r){
		if(!check(r)){
			ans = r;
			done = true;
			return;
		}
		else if(check(r) == 1){
			r--;
		}
		else break;
	}
	if(l>=r)return;
	int cnt = req(r).fs+req(l).sc-(N-big);
	if(!cnt)return;
	cerr<<"CHECK: "<<l<<','<<r<<','<<cnt<<endl;
	assert(cnt>0);
	int mid = (l+r)>>1;
	if(check(mid) == 0){
		ans = mid;
		done = true;
		return;
	}
	if(l == r)return;
	if(l != mid)dfs(l,mid);
	if(mid != r)dfs(mid,r);
	return;
}

int find_best(int nn) {
	mt19937 seed(time(NULL));
#define rnd(l,r) uniform_int_distribution<int>(l,r)(seed)
	N = nn;
	int pt = 0;
	for(int i = 1;i*i<2e5;i++)pt = i;
	cerr<<pt<<endl;
	for(auto &i:dp)i = pii(-1,-1);
	if(N<=lim){
		for(int i = 0;i<N;i++){
			auto tmp = req(i);
			if(!tmp.fs&&!tmp.sc)return i;
		}
		assert(false);
		return 0;
	}
	vector<int> perm;
	for(int i = 0;i<N;i++)perm.push_back(i);
	shuffle(perm.begin(),perm.end(),seed);
	for(int i = 0;i<dt;i++){
		auto tmp = req(perm[i]);
		big = min(big,N-tmp.fs-tmp.sc);
		if(!tmp.fs&&!tmp.sc){
			return perm[i];
		}
	}
	cerr<<"BIG: "<<big<<endl;
	dfs(0,N-1);
	if(!done)exit(0);
	return ans;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 3024 KB Output is correct
2 Correct 5 ms 3024 KB Output is correct
3 Correct 5 ms 3024 KB Output is correct
4 Correct 4 ms 3024 KB Output is correct
5 Correct 4 ms 3024 KB Output is correct
6 Correct 5 ms 3024 KB Output is correct
7 Correct 6 ms 3024 KB Output is correct
8 Correct 5 ms 3120 KB Output is correct
9 Correct 5 ms 3024 KB Output is correct
10 Correct 7 ms 3024 KB Output is correct

Subtask #2
0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 3024 KB Output is correct
2 Correct 6 ms 3024 KB Output is correct
3 Correct 5 ms 3024 KB Output is correct
4 Correct 6 ms 3024 KB Output is correct
5 Correct 5 ms 3024 KB Output is correct
6 Correct 5 ms 3024 KB Output is correct
7 Correct 5 ms 3024 KB Output is correct
8 Correct 4 ms 3024 KB Output is correct
9 Correct 5 ms 3024 KB Output is correct
10 Correct 5 ms 3024 KB Output is correct
11 Correct 8 ms 3020 KB Output is correct
12 Correct 5 ms 3024 KB Output is correct
13 Correct 12 ms 3024 KB Output is correct
14 Correct 8 ms 2136 KB Output is correct
15 Correct 16 ms 3024 KB Output is correct
16 Correct 73 ms 3332 KB Output is correct
17 Correct 5 ms 3024 KB Output is correct
18 Correct 83 ms 3300 KB Output is correct
19 Correct 5 ms 3024 KB Output is correct
20 Correct 21 ms 2516 KB Output is correct
21 Correct 39 ms 3052 KB Output is correct
22 Correct 10 ms 3024 KB Output is correct
23 Correct 4 ms 3024 KB Output is correct
24 Correct 5 ms 3024 KB Output is correct
25 Correct 69 ms 3024 KB Output is correct
26 Correct 45 ms 3224 KB Output is correct
27 Correct 5 ms 3024 KB Output is correct
28 Correct 71 ms 3232 KB Output is correct
29 Correct 68 ms 3276 KB Output is correct
30 Correct 85 ms 3028 KB Output is correct
31 Correct 5 ms 3024 KB Output is correct
32 Correct 10 ms 3112 KB Output is correct
33 Correct 1 ms 1880 KB Output is correct
34 Correct 28 ms 3024 KB Output is correct
35 Correct 9 ms 3024 KB Output is correct
36 Correct 21 ms 3024 KB Output is correct
37 Correct 6 ms 3024 KB Output is correct
38 Correct 5 ms 3024 KB Output is correct
39 Correct 39 ms 3024 KB Output is correct
40 Correct 77 ms 3296 KB Output is correct
41 Correct 49 ms 3024 KB Output is correct
42 Correct 49 ms 3024 KB Output is correct
43 Correct 43 ms 3024 KB Output is correct
44 Correct 34 ms 3024 KB Output is correct
45 Correct 27 ms 3024 KB Output is correct
46 Correct 5 ms 3024 KB Output is correct
47 Correct 37 ms 3024 KB Output is correct
48 Correct 69 ms 3024 KB Output is correct
49 Correct 10 ms 3024 KB Output is correct
50 Correct 93 ms 3024 KB Output is correct
51 Correct 34 ms 3276 KB Output is correct
52 Correct 6 ms 3020 KB Output is correct
53 Correct 6 ms 3024 KB Output is correct
54 Correct 36 ms 3024 KB Output is correct
55 Correct 6 ms 3024 KB Output is correct
56 Correct 85 ms 3188 KB Output is correct
57 Correct 65 ms 3216 KB Output is correct
58 Correct 63 ms 3024 KB Output is correct
59 Correct 52 ms 3228 KB Output is correct
60 Correct 46 ms 3020 KB Output is correct
61 Correct 7 ms 3024 KB Output is correct
62 Correct 5 ms 3024 KB Output is correct
63 Correct 7 ms 3116 KB Output is correct
64 Correct 6 ms 3024 KB Output is correct
65 Correct 4 ms 3024 KB Output is correct
66 Correct 4 ms 3024 KB Output is correct
67 Correct 6 ms 3024 KB Output is correct
68 Correct 6 ms 3024 KB Output is correct
69 Correct 5 ms 3024 KB Output is correct
70 Correct 5 ms 3024 KB Output is correct
71 Partially correct 92 ms 3264 KB Partially correct - number of queries: 5078
72 Correct 13 ms 3024 KB Output is correct
73 Partially correct 107 ms 3212 KB Partially correct - number of queries: 5016
74 Partially correct 115 ms 3520 KB Partially correct - number of queries: 5042
75 Correct 7 ms 3024 KB Output is correct
76 Correct 102 ms 3268 KB Output is correct
77 Partially correct 103 ms 3176 KB Partially correct - number of queries: 5034
78 Correct 17 ms 3024 KB Output is correct
79 Correct 50 ms 3024 KB Output is correct
80 Partially correct 87 ms 3024 KB Partially correct - number of queries: 5083
81 Partially correct 99 ms 3040 KB Partially correct - number of queries: 5070
82 Correct 106 ms 3424 KB Output is correct
83 Correct 7 ms 3024 KB Output is correct
84 Correct 69 ms 3332 KB Output is correct
85 Partially correct 94 ms 3524 KB Partially correct - number of queries: 5021
86 Correct 58 ms 3052 KB Output is correct
87 Correct 6 ms 3024 KB Output is correct
88 Correct 71 ms 3024 KB Output is correct
89 Correct 52 ms 3024 KB Output is correct
90 Correct 6 ms 3024 KB Output is correct
91 Correct 27 ms 3044 KB Output is correct
92 Correct 41 ms 3024 KB Output is correct
93 Runtime error 64 ms 6336 KB Execution killed with signal 6
94 Halted 0 ms 0 KB -