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Submission #790697

# Submission time Handle Problem Language Result Execution time Memory
790697 2023-07-23T06:23:15 Z PoonYaPat The Big Prize (IOI17_prize) C++14
90 / 100
 83 ms 5520 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;

int mmax=0,st,n,non_lol;
vector<int> val[200005];
vector<int> none;

void find_nxt() { //find the next non-lollipop
	int l=st+1,r=n-1;
	if (none.size()==non_lol) return;
	while (l<r) {
		int mid=(l+r)/2;
		val[mid]=ask(mid);
		if (val[mid][0]+val[mid][1]!=mmax) r=mid;
		else if (val[mid][0]!=val[st][0]) r=mid;
		else l=mid+1;
	}
	none.push_back(l);

	for (int i=l+1; i<n; ++i) {
		val[i]=ask(i);
		if (val[i][0]+val[i][1]!=mmax) none.push_back(i);
		else {
			st=i;
			find_nxt();
			break;
		}
	}
}

int find_best(int N) {
	n=N;
	for (int i=0; i<min(500,n); ++i) {
		val[i]=ask(i);
		mmax=max(mmax,val[i][0]+val[i][1]);
	}

	non_lol=n-mmax-1;
	for (int i=0; i<min(500,n); ++i) {
		if (val[i][0]+val[i][1]==mmax) {
			st=i;
			find_nxt();
			break;
		} else none.push_back(i);
	}

	for (auto s : none) {
		val[s]=ask(s);
		if (val[s][0]+val[s][1]==0) return s;
	}
}

Compilation message

prize.cpp: In function 'void find_nxt()':
prize.cpp:11:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   11 |  if (none.size()==non_lol) return;
      |      ~~~~~~~~~~~^~~~~~~~~
prize.cpp: In function 'int find_best(int)':
prize.cpp:52:1: warning: control reaches end of non-void function [-Wreturn-type]
   52 | }
      | ^

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4980 KB Output is correct
2 Correct 5 ms 5012 KB Output is correct
3 Correct 5 ms 4988 KB Output is correct
4 Correct 8 ms 4996 KB Output is correct
5 Correct 6 ms 4944 KB Output is correct
6 Correct 4 ms 5004 KB Output is correct
7 Correct 7 ms 5000 KB Output is correct
8 Correct 7 ms 5076 KB Output is correct
9 Correct 8 ms 4944 KB Output is correct
10 Correct 7 ms 4944 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4944 KB Output is correct
2 Correct 6 ms 4992 KB Output is correct
3 Correct 6 ms 4996 KB Output is correct
4 Correct 4 ms 5008 KB Output is correct
5 Correct 6 ms 4944 KB Output is correct
6 Correct 4 ms 5008 KB Output is correct
7 Correct 6 ms 4944 KB Output is correct
8 Correct 5 ms 5008 KB Output is correct
9 Correct 6 ms 5008 KB Output is correct
10 Correct 7 ms 4944 KB Output is correct
11 Correct 6 ms 5028 KB Output is correct
12 Correct 7 ms 5224 KB Output is correct
13 Correct 7 ms 5008 KB Output is correct
14 Correct 24 ms 5028 KB Output is correct
15 Partially correct 73 ms 5192 KB Partially correct - number of queries: 8300
16 Partially correct 55 ms 5240 KB Partially correct - number of queries: 9042
17 Partially correct 31 ms 5376 KB Partially correct - number of queries: 8656
18 Partially correct 45 ms 5212 KB Partially correct - number of queries: 9119
19 Partially correct 75 ms 5244 KB Partially correct - number of queries: 8137
20 Partially correct 46 ms 5520 KB Partially correct - number of queries: 5897
21 Partially correct 68 ms 5260 KB Partially correct - number of queries: 8744
22 Partially correct 24 ms 5204 KB Partially correct - number of queries: 6548
23 Correct 8 ms 4944 KB Output is correct
24 Correct 12 ms 5024 KB Output is correct
25 Partially correct 43 ms 5296 KB Partially correct - number of queries: 8894
26 Partially correct 63 ms 5204 KB Partially correct - number of queries: 8827
27 Correct 8 ms 4996 KB Output is correct
28 Partially correct 32 ms 5276 KB Partially correct - number of queries: 8967
29 Partially correct 55 ms 5324 KB Partially correct - number of queries: 7366
30 Partially correct 64 ms 5220 KB Partially correct - number of queries: 9068
31 Partially correct 31 ms 5280 KB Partially correct - number of queries: 8600
32 Correct 8 ms 5000 KB Output is correct
33 Correct 4 ms 4944 KB Output is correct
34 Partially correct 32 ms 5284 KB Partially correct - number of queries: 8798
35 Correct 6 ms 5000 KB Output is correct
36 Partially correct 32 ms 5280 KB Partially correct - number of queries: 8696
37 Correct 11 ms 5016 KB Output is correct
38 Correct 5 ms 5072 KB Output is correct
39 Partially correct 62 ms 5404 KB Partially correct - number of queries: 8804
40 Partially correct 39 ms 5148 KB Partially correct - number of queries: 7824
41 Partially correct 72 ms 5180 KB Partially correct - number of queries: 8925
42 Partially correct 78 ms 5172 KB Partially correct - number of queries: 8925
43 Partially correct 32 ms 5260 KB Partially correct - number of queries: 8634
44 Partially correct 31 ms 5284 KB Partially correct - number of queries: 8840
45 Partially correct 78 ms 5188 KB Partially correct - number of queries: 8817
46 Partially correct 76 ms 5332 KB Partially correct - number of queries: 8656
47 Partially correct 53 ms 5220 KB Partially correct - number of queries: 8906
48 Partially correct 73 ms 5260 KB Partially correct - number of queries: 8989
49 Partially correct 58 ms 5248 KB Partially correct - number of queries: 8704
50 Partially correct 47 ms 5208 KB Partially correct - number of queries: 9116
51 Partially correct 54 ms 5284 KB Partially correct - number of queries: 8835
52 Partially correct 76 ms 5192 KB Partially correct - number of queries: 8662
53 Correct 7 ms 4944 KB Output is correct
54 Partially correct 78 ms 5204 KB Partially correct - number of queries: 8789
55 Partially correct 31 ms 5272 KB Partially correct - number of queries: 8643
56 Partially correct 83 ms 5188 KB Partially correct - number of queries: 9129
57 Partially correct 32 ms 5364 KB Partially correct - number of queries: 8923
58 Partially correct 80 ms 5192 KB Partially correct - number of queries: 8979
59 Partially correct 59 ms 5264 KB Partially correct - number of queries: 8925
60 Partially correct 52 ms 5312 KB Partially correct - number of queries: 8826
61 Correct 7 ms 4988 KB Output is correct
62 Correct 6 ms 4988 KB Output is correct
63 Correct 5 ms 5004 KB Output is correct
64 Correct 7 ms 4944 KB Output is correct
65 Correct 7 ms 4992 KB Output is correct
66 Correct 7 ms 5020 KB Output is correct
67 Correct 11 ms 4996 KB Output is correct
68 Correct 10 ms 4944 KB Output is correct
69 Correct 13 ms 4944 KB Output is correct
70 Correct 11 ms 4996 KB Output is correct
71 Partially correct 73 ms 5208 KB Partially correct - number of queries: 9295
72 Correct 12 ms 5016 KB Output is correct
73 Partially correct 61 ms 5216 KB Partially correct - number of queries: 9162
74 Partially correct 81 ms 5252 KB Partially correct - number of queries: 9216
75 Correct 7 ms 4944 KB Output is correct
76 Partially correct 50 ms 5268 KB Partially correct - number of queries: 7947
77 Partially correct 66 ms 5264 KB Partially correct - number of queries: 9156
78 Correct 12 ms 4944 KB Output is correct
79 Correct 31 ms 5108 KB Output is correct
80 Partially correct 53 ms 5168 KB Partially correct - number of queries: 9134
81 Partially correct 73 ms 5276 KB Partially correct - number of queries: 9164
82 Partially correct 78 ms 5260 KB Partially correct - number of queries: 9083
83 Correct 7 ms 4944 KB Output is correct
84 Partially correct 52 ms 5108 KB Partially correct - number of queries: 7548
85 Partially correct 48 ms 5172 KB Partially correct - number of queries: 9166
86 Correct 11 ms 4944 KB Output is correct
87 Correct 7 ms 5012 KB Output is correct
88 Correct 9 ms 5004 KB Output is correct
89 Correct 9 ms 4944 KB Output is correct
90 Correct 6 ms 5016 KB Output is correct
91 Correct 7 ms 5008 KB Output is correct
92 Correct 9 ms 4944 KB Output is correct
93 Correct 14 ms 5016 KB Output is correct
94 Correct 14 ms 4944 KB Output is correct
95 Correct 14 ms 4944 KB Output is correct
96 Correct 13 ms 5004 KB Output is correct
97 Correct 7 ms 4944 KB Output is correct