답안 #430247

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
430247 2021-06-16T12:27:52 Z AmineWeslati 커다란 상품 (IOI17_prize) C++14
90 / 100
139 ms 1884 KB
#include "prize.h"
#include <bits/stdc++.h>
using namespace std; 

typedef long long ll;
typedef vector<int>vi; 
#define pb push_back
#define sz(x) (int)x.size()
#define all(x) begin(x),end(x)

#define FOR(i,a,b) for(int i=a; i<b; i++)

//-----------------------------------------------------

const int MX=2e5+10;
int memo[MX][2];

int cnt=0;
vi query(int i){
	if(memo[i][0]==-1){
		cnt++;
		if(cnt>10000) assert(0);
		vi vec=ask(i);
		memo[i][0]=vec[0];
		memo[i][1]=vec[1];
	} 
	return vi{memo[i][0],memo[i][1]};
}

int sq(int x){
	return x*x; 
}

int find_best(int N){
	memset(memo,-1,sizeof(memo));

	int lft=0;
	while(lft<N){
		vi v=query(lft);
		if(v[0]+v[1]==0) return lft;

		
		int l=lft,r=min(N-1,lft+1000),rgt;

		while(l<=r){
			int m=(l+r)/2;

			vi vv=query(m);
			if(v[0]+v[1]!=vv[0]+vv[1]) 
				r=m-1;
			else{
				if(v[0]==vv[0]){
					rgt=m;
					l=m+1;
				}
				else r=m-1;
			}
		}

		lft=rgt+1;
	}
	return 0;
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:60:6: warning: 'rgt' may be used uninitialized in this function [-Wmaybe-uninitialized]
   60 |   lft=rgt+1;
      |   ~~~^~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 1824 KB Output is correct
2 Correct 20 ms 1736 KB Output is correct
3 Correct 12 ms 1728 KB Output is correct
4 Correct 24 ms 1736 KB Output is correct
5 Correct 18 ms 1824 KB Output is correct
6 Correct 2 ms 1820 KB Output is correct
7 Correct 17 ms 1824 KB Output is correct
8 Correct 18 ms 1832 KB Output is correct
9 Correct 16 ms 1824 KB Output is correct
10 Correct 36 ms 1792 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1828 KB Output is correct
2 Correct 12 ms 1820 KB Output is correct
3 Correct 13 ms 1832 KB Output is correct
4 Correct 34 ms 1824 KB Output is correct
5 Correct 11 ms 1824 KB Output is correct
6 Correct 2 ms 1736 KB Output is correct
7 Correct 17 ms 1804 KB Output is correct
8 Correct 13 ms 1808 KB Output is correct
9 Correct 26 ms 1804 KB Output is correct
10 Correct 22 ms 1736 KB Output is correct
11 Correct 15 ms 1816 KB Output is correct
12 Correct 2 ms 1808 KB Output is correct
13 Correct 38 ms 1828 KB Output is correct
14 Correct 7 ms 1736 KB Output is correct
15 Correct 13 ms 1824 KB Output is correct
16 Partially correct 100 ms 1808 KB Partially correct - number of queries: 7210
17 Correct 2 ms 1816 KB Output is correct
18 Partially correct 74 ms 1828 KB Partially correct - number of queries: 8685
19 Correct 2 ms 1824 KB Output is correct
20 Correct 31 ms 1736 KB Output is correct
21 Correct 43 ms 1824 KB Output is correct
22 Correct 4 ms 1816 KB Output is correct
23 Correct 5 ms 1736 KB Output is correct
24 Correct 2 ms 1736 KB Output is correct
25 Correct 55 ms 1736 KB Output is correct
26 Correct 75 ms 1728 KB Output is correct
27 Correct 9 ms 1736 KB Output is correct
28 Partially correct 114 ms 1828 KB Partially correct - number of queries: 8253
29 Partially correct 39 ms 1816 KB Partially correct - number of queries: 6468
30 Partially correct 120 ms 1816 KB Partially correct - number of queries: 8767
31 Correct 1 ms 1736 KB Output is correct
32 Correct 24 ms 1728 KB Output is correct
33 Correct 2 ms 1736 KB Output is correct
34 Correct 36 ms 1820 KB Output is correct
35 Correct 22 ms 1728 KB Output is correct
36 Correct 25 ms 1820 KB Output is correct
37 Correct 8 ms 1828 KB Output is correct
38 Correct 5 ms 1816 KB Output is correct
39 Correct 53 ms 1812 KB Output is correct
40 Partially correct 103 ms 1820 KB Partially correct - number of queries: 6455
41 Correct 24 ms 1808 KB Output is correct
42 Correct 25 ms 1824 KB Output is correct
43 Correct 62 ms 1820 KB Output is correct
44 Correct 20 ms 1808 KB Output is correct
45 Correct 16 ms 1824 KB Output is correct
46 Correct 2 ms 1804 KB Output is correct
47 Correct 60 ms 1804 KB Output is correct
48 Partially correct 79 ms 1808 KB Partially correct - number of queries: 6251
49 Correct 14 ms 1728 KB Output is correct
50 Partially correct 135 ms 1736 KB Partially correct - number of queries: 8640
51 Correct 37 ms 1736 KB Output is correct
52 Correct 2 ms 1816 KB Output is correct
53 Correct 32 ms 1828 KB Output is correct
54 Correct 30 ms 1736 KB Output is correct
55 Correct 1 ms 1804 KB Output is correct
56 Partially correct 66 ms 1820 KB Partially correct - number of queries: 8677
57 Partially correct 76 ms 1736 KB Partially correct - number of queries: 5934
58 Partially correct 31 ms 1804 KB Partially correct - number of queries: 6116
59 Correct 41 ms 1808 KB Output is correct
60 Correct 51 ms 1736 KB Output is correct
61 Correct 28 ms 1816 KB Output is correct
62 Correct 4 ms 1736 KB Output is correct
63 Correct 11 ms 1816 KB Output is correct
64 Correct 22 ms 1820 KB Output is correct
65 Correct 12 ms 1856 KB Output is correct
66 Correct 21 ms 1828 KB Output is correct
67 Correct 19 ms 1736 KB Output is correct
68 Correct 2 ms 1728 KB Output is correct
69 Correct 27 ms 1728 KB Output is correct
70 Correct 35 ms 1820 KB Output is correct
71 Partially correct 96 ms 1736 KB Partially correct - number of queries: 8488
72 Correct 26 ms 1736 KB Output is correct
73 Partially correct 123 ms 1736 KB Partially correct - number of queries: 8362
74 Partially correct 81 ms 1736 KB Partially correct - number of queries: 8415
75 Correct 22 ms 1736 KB Output is correct
76 Partially correct 116 ms 1736 KB Partially correct - number of queries: 7454
77 Partially correct 42 ms 1864 KB Partially correct - number of queries: 8524
78 Correct 28 ms 1736 KB Output is correct
79 Correct 32 ms 1736 KB Output is correct
80 Partially correct 82 ms 1736 KB Partially correct - number of queries: 8553
81 Partially correct 96 ms 1736 KB Partially correct - number of queries: 8570
82 Partially correct 114 ms 1736 KB Partially correct - number of queries: 8546
83 Correct 22 ms 1736 KB Output is correct
84 Partially correct 75 ms 1736 KB Partially correct - number of queries: 7363
85 Partially correct 139 ms 1736 KB Partially correct - number of queries: 8534
86 Correct 29 ms 1884 KB Output is correct
87 Correct 21 ms 1736 KB Output is correct
88 Correct 25 ms 1736 KB Output is correct
89 Correct 14 ms 1736 KB Output is correct
90 Correct 22 ms 1828 KB Output is correct
91 Correct 23 ms 1736 KB Output is correct
92 Correct 27 ms 1736 KB Output is correct
93 Correct 27 ms 1736 KB Output is correct
94 Correct 26 ms 1736 KB Output is correct
95 Correct 37 ms 1736 KB Output is correct
96 Correct 38 ms 1736 KB Output is correct
97 Correct 30 ms 1736 KB Output is correct