oj.uz

Submission #199227

# Submission time Handle Problem Language Result Execution time Memory
199227 2020-01-30T14:04:35 Z TAISA_ Xylophone (JOI18_xylophone) C++14
100 / 100
 104 ms 504 KB 
#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;
static int A[5000];

void solve(int N) {
	vector<int> s(N+1),t(N+1),u(N+1);
	for(int i=1;i<N;i++){
		t[i]=query(i,i+1);
	}
	for(int i=1;i<N-1;i++){
		int k=query(i,i+2);
		if(abs(t[i]+t[i+1])==abs(k)){
			s[i+1]=0;
		}else{
			s[i+1]=1;
		}
	}
	int b=0;
	auto check=[&]{
		int mi=0;
		u[1]=0;
		for(int i=2;i<=N;i++){
			if(b==0){
				u[i]=u[i-1]+t[i-1];
			}else{
				u[i]=u[i-1]-t[i-1];
			}
			mi=min(mi,u[i]);
			if(s[i]==1){
				b^=1;
			}
		}
		bool f=false;
		for(int i=1;i<=N;i++){
			u[i]+=(1-mi);
			if(u[i]==N){
				f=true;
			}
			if(u[i]==1){
				if(f){
					return false;
				}
			}
		}
		for(int i=1;i<=N;i++){
			answer(i,u[i]);
		}
		return true;
	};
	if(check()){
		return;
	}
	b=1;
	check();
}

Compilation message

xylophone.cpp:4:12: warning: 'A' defined but not used [-Wunused-variable]
 static int A[5000];
            ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 252 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 6 ms 248 KB Output is correct
4 Correct 7 ms 376 KB Output is correct
5 Correct 7 ms 252 KB Output is correct
6 Correct 7 ms 248 KB Output is correct
7 Correct 7 ms 248 KB Output is correct
8 Correct 6 ms 376 KB Output is correct
9 Correct 7 ms 248 KB Output is correct
10 Correct 7 ms 248 KB Output is correct
11 Correct 8 ms 376 KB Output is correct
12 Correct 6 ms 248 KB Output is correct
13 Correct 6 ms 252 KB Output is correct
14 Correct 7 ms 248 KB Output is correct
15 Correct 11 ms 248 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 252 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 6 ms 248 KB Output is correct
4 Correct 7 ms 376 KB Output is correct
5 Correct 7 ms 252 KB Output is correct
6 Correct 7 ms 248 KB Output is correct
7 Correct 7 ms 248 KB Output is correct
8 Correct 6 ms 376 KB Output is correct
9 Correct 7 ms 248 KB Output is correct
10 Correct 7 ms 248 KB Output is correct
11 Correct 8 ms 376 KB Output is correct
12 Correct 6 ms 248 KB Output is correct
13 Correct 6 ms 252 KB Output is correct
14 Correct 7 ms 248 KB Output is correct
15 Correct 11 ms 248 KB Output is correct
16 Correct 9 ms 248 KB Output is correct
17 Correct 14 ms 376 KB Output is correct
18 Correct 20 ms 504 KB Output is correct
19 Correct 25 ms 376 KB Output is correct
20 Correct 23 ms 376 KB Output is correct
21 Correct 24 ms 376 KB Output is correct
22 Correct 22 ms 328 KB Output is correct
23 Correct 24 ms 376 KB Output is correct
24 Correct 27 ms 248 KB Output is correct
25 Correct 15 ms 332 KB Output is correct
26 Correct 22 ms 248 KB Output is correct
27 Correct 20 ms 248 KB Output is correct
28 Correct 25 ms 248 KB Output is correct
29 Correct 16 ms 332 KB Output is correct
30 Correct 23 ms 504 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 252 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 6 ms 248 KB Output is correct
4 Correct 7 ms 376 KB Output is correct
5 Correct 7 ms 252 KB Output is correct
6 Correct 7 ms 248 KB Output is correct
7 Correct 7 ms 248 KB Output is correct
8 Correct 6 ms 376 KB Output is correct
9 Correct 7 ms 248 KB Output is correct
10 Correct 7 ms 248 KB Output is correct
11 Correct 8 ms 376 KB Output is correct
12 Correct 6 ms 248 KB Output is correct
13 Correct 6 ms 252 KB Output is correct
14 Correct 7 ms 248 KB Output is correct
15 Correct 11 ms 248 KB Output is correct
16 Correct 9 ms 248 KB Output is correct
17 Correct 14 ms 376 KB Output is correct
18 Correct 20 ms 504 KB Output is correct
19 Correct 25 ms 376 KB Output is correct
20 Correct 23 ms 376 KB Output is correct
21 Correct 24 ms 376 KB Output is correct
22 Correct 22 ms 328 KB Output is correct
23 Correct 24 ms 376 KB Output is correct
24 Correct 27 ms 248 KB Output is correct
25 Correct 15 ms 332 KB Output is correct
26 Correct 22 ms 248 KB Output is correct
27 Correct 20 ms 248 KB Output is correct
28 Correct 25 ms 248 KB Output is correct
29 Correct 16 ms 332 KB Output is correct
30 Correct 23 ms 504 KB Output is correct
31 Correct 47 ms 376 KB Output is correct
32 Correct 57 ms 356 KB Output is correct
33 Correct 65 ms 376 KB Output is correct
34 Correct 100 ms 504 KB Output is correct
35 Correct 92 ms 376 KB Output is correct
36 Correct 73 ms 376 KB Output is correct
37 Correct 71 ms 376 KB Output is correct
38 Correct 91 ms 376 KB Output is correct
39 Correct 91 ms 376 KB Output is correct
40 Correct 92 ms 504 KB Output is correct
41 Correct 95 ms 376 KB Output is correct
42 Correct 87 ms 504 KB Output is correct
43 Correct 89 ms 376 KB Output is correct
44 Correct 85 ms 376 KB Output is correct
45 Correct 101 ms 376 KB Output is correct
46 Correct 104 ms 376 KB Output is correct
47 Correct 81 ms 376 KB Output is correct
48 Correct 88 ms 376 KB Output is correct
49 Correct 94 ms 376 KB Output is correct
50 Correct 82 ms 504 KB Output is correct
51 Correct 87 ms 424 KB Output is correct
52 Correct 89 ms 376 KB Output is correct
53 Correct 90 ms 388 KB Output is correct
54 Correct 89 ms 376 KB Output is correct
55 Correct 89 ms 376 KB Output is correct
56 Correct 100 ms 504 KB Output is correct
57 Correct 92 ms 456 KB Output is correct
58 Correct 65 ms 376 KB Output is correct
59 Correct 96 ms 380 KB Output is correct
60 Correct 55 ms 380 KB Output is correct