oj.uz

Submission #152732

# Submission time Handle Problem Language Result Execution time Memory
152732 2019-09-09T09:58:42 Z junodeveloper Xylophone (JOI18_xylophone) C++14
100 / 100
 97 ms 512 KB 
#include "xylophone.h"

static int A[5010];
static bool used[5010]={0};
int n;
inline void Set(int i, int x) {
	A[i]=x;
	used[x]=1;
}
inline bool Poss(int x) {
	return 1<=x&&x<=n&&!used[x];
}
void solve(int N) {
	n=N;
	int lo=1, hi=N, x, y;
	while(lo<hi) {
		int mid=(lo+hi+1)/2;
		x=query(mid,N);
		if(x==N-1) lo=mid;
		else hi=mid-1;
	}
	Set(lo,1);
	int i;
	if(lo+1<=N) {
		x=query(lo,lo+1);
		Set(lo+1,x+1);
	}
	if(lo-1>=1) {
		x=query(lo-1,lo);
		Set(lo-1,x+1);
	}
	for(i=lo+2;i<=N;i++) {
		x=query(i-1,i);
		if(!Poss(A[i-1]+x)) {
			Set(i,A[i-1]-x);
		} else if(!Poss(A[i-1]-x)) {
			Set(i,A[i-1]+x);
		} else {
			if(A[i-2]>A[i-1]) {
				y=query(i-2,i);
				if(y==A[i-2]-A[i-1]+x) {
					Set(i,A[i-1]-x);
				} else {
					Set(i,A[i-1]+x);
				}
			} else {
				y=query(i-2,i);
				if(y==A[i-1]-A[i-2]+x) {
					Set(i,A[i-1]+x);
				} else {
					Set(i,A[i-1]-x);
				}
			}
		}
	}
	for(i=lo-2;i>=1;i--) {
		x=query(i,i+1);
		if(!Poss(A[i+1]+x)) {
			Set(i,A[i+1]-x);
		} else if(!Poss(A[i+1]-x)) {
			Set(i,A[i+1]+x);
		} else {
			if(A[i+2]>A[i+1]) {
				y=query(i,i+2);
				if(y==A[i+2]-A[i+1]+x) {
					Set(i,A[i+1]-x);
				} else {
					Set(i,A[i+1]+x);
				}
			} else {
				y=query(i,i+2);
				if(y==A[i+1]-A[i+2]+x) {
					Set(i,A[i+1]+x);
				} else {
					Set(i,A[i+1]-x);
				}
			}
		}
	}
	for(i=1;i<=N;i++) answer(i,A[i]);
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 388 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 4 ms 376 KB Output is correct
5 Correct 3 ms 248 KB Output is correct
6 Correct 4 ms 252 KB Output is correct
7 Correct 4 ms 248 KB Output is correct
8 Correct 3 ms 300 KB Output is correct
9 Correct 3 ms 248 KB Output is correct
10 Correct 3 ms 248 KB Output is correct
11 Correct 3 ms 296 KB Output is correct
12 Correct 3 ms 248 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 4 ms 376 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 388 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 4 ms 376 KB Output is correct
5 Correct 3 ms 248 KB Output is correct
6 Correct 4 ms 252 KB Output is correct
7 Correct 4 ms 248 KB Output is correct
8 Correct 3 ms 300 KB Output is correct
9 Correct 3 ms 248 KB Output is correct
10 Correct 3 ms 248 KB Output is correct
11 Correct 3 ms 296 KB Output is correct
12 Correct 3 ms 248 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 4 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 10 ms 248 KB Output is correct
18 Correct 15 ms 376 KB Output is correct
19 Correct 16 ms 388 KB Output is correct
20 Correct 12 ms 392 KB Output is correct
21 Correct 17 ms 248 KB Output is correct
22 Correct 15 ms 248 KB Output is correct
23 Correct 13 ms 376 KB Output is correct
24 Correct 8 ms 388 KB Output is correct
25 Correct 16 ms 296 KB Output is correct
26 Correct 15 ms 424 KB Output is correct
27 Correct 15 ms 380 KB Output is correct
28 Correct 14 ms 248 KB Output is correct
29 Correct 11 ms 392 KB Output is correct
30 Correct 16 ms 248 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 388 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 4 ms 376 KB Output is correct
5 Correct 3 ms 248 KB Output is correct
6 Correct 4 ms 252 KB Output is correct
7 Correct 4 ms 248 KB Output is correct
8 Correct 3 ms 300 KB Output is correct
9 Correct 3 ms 248 KB Output is correct
10 Correct 3 ms 248 KB Output is correct
11 Correct 3 ms 296 KB Output is correct
12 Correct 3 ms 248 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 4 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 10 ms 248 KB Output is correct
18 Correct 15 ms 376 KB Output is correct
19 Correct 16 ms 388 KB Output is correct
20 Correct 12 ms 392 KB Output is correct
21 Correct 17 ms 248 KB Output is correct
22 Correct 15 ms 248 KB Output is correct
23 Correct 13 ms 376 KB Output is correct
24 Correct 8 ms 388 KB Output is correct
25 Correct 16 ms 296 KB Output is correct
26 Correct 15 ms 424 KB Output is correct
27 Correct 15 ms 380 KB Output is correct
28 Correct 14 ms 248 KB Output is correct
29 Correct 11 ms 392 KB Output is correct
30 Correct 16 ms 248 KB Output is correct
31 Correct 36 ms 252 KB Output is correct
32 Correct 46 ms 376 KB Output is correct
33 Correct 60 ms 248 KB Output is correct
34 Correct 43 ms 312 KB Output is correct
35 Correct 50 ms 316 KB Output is correct
36 Correct 30 ms 388 KB Output is correct
37 Correct 57 ms 316 KB Output is correct
38 Correct 57 ms 376 KB Output is correct
39 Correct 66 ms 452 KB Output is correct
40 Correct 63 ms 404 KB Output is correct
41 Correct 37 ms 512 KB Output is correct
42 Correct 50 ms 376 KB Output is correct
43 Correct 59 ms 424 KB Output is correct
44 Correct 43 ms 320 KB Output is correct
45 Correct 77 ms 248 KB Output is correct
46 Correct 69 ms 440 KB Output is correct
47 Correct 67 ms 248 KB Output is correct
48 Correct 54 ms 424 KB Output is correct
49 Correct 40 ms 304 KB Output is correct
50 Correct 55 ms 320 KB Output is correct
51 Correct 76 ms 248 KB Output is correct
52 Correct 45 ms 424 KB Output is correct
53 Correct 69 ms 384 KB Output is correct
54 Correct 48 ms 400 KB Output is correct
55 Correct 48 ms 408 KB Output is correct
56 Correct 77 ms 316 KB Output is correct
57 Correct 88 ms 320 KB Output is correct
58 Correct 38 ms 388 KB Output is correct
59 Correct 97 ms 504 KB Output is correct
60 Correct 82 ms 376 KB Output is correct