oj.uz

Submission #123422

# Submission time Handle Problem Language Result Execution time Memory
123422 2019-07-01T12:25:09 Z arnold518 Xylophone (JOI18_xylophone) C++14
100 / 100
 112 ms 536 KB 
#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 5000;

int N, A[MAXN+10], Q1[MAXN+10], Q2[MAXN+10], D[MAXN+10], P1[MAXN+10], P2[MAXN+10];

void ans(int* P)
{
    int i, j;
    for(i=1; i<=N; i++)
    {
        answer(i, P[i]);
    }
}

void solve(int n)
{
    int i, j;
    N=n;

    for(i=1; i<N; i++) Q1[i]=query(i, i+1);
    for(i=1; i+1<N; i++) Q2[i]=query(i, i+2);

    D[1]=1;
    for(i=1; i+1<N; i++)
    {
        int a=Q1[i]+Q1[i+1];
        int b=max(Q1[i], Q1[i+1]);

        if(a==Q2[i]) D[i+1]=D[i];
        else D[i+1]=-D[i];
    }

    P1[1]=P2[1]=0;
    int min1=0, min2=0;
    for(i=2; i<=N; i++)
    {
        P1[i]=P1[i-1]+D[i-1]*Q1[i-1];
        P2[i]=P2[i-1]-D[i-1]*Q1[i-1];
        min1=min(min1, P1[i]);
        min2=min(min2, P2[i]);
    }

    for(i=1; i<=N; i++) P1[i]-=min1-1, P2[i]-=min2-1;

    int a, b;
    for(i=1; i<=N; i++)
    {
        if(P1[i]==1) a=i;
        if(P1[i]==N) b=i;
    }
    if(a<b) ans(P1);
    else ans(P2);
}

Compilation message

xylophone.cpp: In function 'void ans(int*)':
xylophone.cpp:15:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:34:13: warning: unused variable 'b' [-Wunused-variable]
         int b=max(Q1[i], Q1[i+1]);
             ^
xylophone.cpp:24:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
xylophone.cpp:58:5: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(a<b) ans(P1);
     ^~
xylophone.cpp:58:5: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 316 KB Output is correct
4 Correct 4 ms 248 KB Output is correct
5 Correct 4 ms 248 KB Output is correct
6 Correct 4 ms 324 KB Output is correct
7 Correct 3 ms 396 KB Output is correct
8 Correct 4 ms 252 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 3 ms 324 KB Output is correct
11 Correct 4 ms 248 KB Output is correct
12 Correct 4 ms 248 KB Output is correct
13 Correct 4 ms 248 KB Output is correct
14 Correct 3 ms 248 KB Output is correct
15 Correct 4 ms 248 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 316 KB Output is correct
4 Correct 4 ms 248 KB Output is correct
5 Correct 4 ms 248 KB Output is correct
6 Correct 4 ms 324 KB Output is correct
7 Correct 3 ms 396 KB Output is correct
8 Correct 4 ms 252 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 3 ms 324 KB Output is correct
11 Correct 4 ms 248 KB Output is correct
12 Correct 4 ms 248 KB Output is correct
13 Correct 4 ms 248 KB Output is correct
14 Correct 3 ms 248 KB Output is correct
15 Correct 4 ms 248 KB Output is correct
16 Correct 7 ms 376 KB Output is correct
17 Correct 13 ms 328 KB Output is correct
18 Correct 10 ms 320 KB Output is correct
19 Correct 20 ms 380 KB Output is correct
20 Correct 13 ms 312 KB Output is correct
21 Correct 28 ms 248 KB Output is correct
22 Correct 12 ms 312 KB Output is correct
23 Correct 23 ms 248 KB Output is correct
24 Correct 23 ms 248 KB Output is correct
25 Correct 20 ms 248 KB Output is correct
26 Correct 23 ms 248 KB Output is correct
27 Correct 23 ms 328 KB Output is correct
28 Correct 16 ms 376 KB Output is correct
29 Correct 22 ms 376 KB Output is correct
30 Correct 26 ms 376 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 316 KB Output is correct
4 Correct 4 ms 248 KB Output is correct
5 Correct 4 ms 248 KB Output is correct
6 Correct 4 ms 324 KB Output is correct
7 Correct 3 ms 396 KB Output is correct
8 Correct 4 ms 252 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 3 ms 324 KB Output is correct
11 Correct 4 ms 248 KB Output is correct
12 Correct 4 ms 248 KB Output is correct
13 Correct 4 ms 248 KB Output is correct
14 Correct 3 ms 248 KB Output is correct
15 Correct 4 ms 248 KB Output is correct
16 Correct 7 ms 376 KB Output is correct
17 Correct 13 ms 328 KB Output is correct
18 Correct 10 ms 320 KB Output is correct
19 Correct 20 ms 380 KB Output is correct
20 Correct 13 ms 312 KB Output is correct
21 Correct 28 ms 248 KB Output is correct
22 Correct 12 ms 312 KB Output is correct
23 Correct 23 ms 248 KB Output is correct
24 Correct 23 ms 248 KB Output is correct
25 Correct 20 ms 248 KB Output is correct
26 Correct 23 ms 248 KB Output is correct
27 Correct 23 ms 328 KB Output is correct
28 Correct 16 ms 376 KB Output is correct
29 Correct 22 ms 376 KB Output is correct
30 Correct 26 ms 376 KB Output is correct
31 Correct 29 ms 320 KB Output is correct
32 Correct 48 ms 448 KB Output is correct
33 Correct 98 ms 336 KB Output is correct
34 Correct 57 ms 536 KB Output is correct
35 Correct 82 ms 320 KB Output is correct
36 Correct 102 ms 404 KB Output is correct
37 Correct 106 ms 428 KB Output is correct
38 Correct 105 ms 376 KB Output is correct
39 Correct 54 ms 444 KB Output is correct
40 Correct 109 ms 340 KB Output is correct
41 Correct 70 ms 440 KB Output is correct
42 Correct 94 ms 332 KB Output is correct
43 Correct 106 ms 336 KB Output is correct
44 Correct 99 ms 340 KB Output is correct
45 Correct 54 ms 360 KB Output is correct
46 Correct 105 ms 336 KB Output is correct
47 Correct 110 ms 332 KB Output is correct
48 Correct 111 ms 376 KB Output is correct
49 Correct 104 ms 468 KB Output is correct
50 Correct 105 ms 320 KB Output is correct
51 Correct 97 ms 528 KB Output is correct
52 Correct 102 ms 376 KB Output is correct
53 Correct 112 ms 424 KB Output is correct
54 Correct 105 ms 428 KB Output is correct
55 Correct 109 ms 332 KB Output is correct
56 Correct 88 ms 408 KB Output is correct
57 Correct 106 ms 424 KB Output is correct
58 Correct 103 ms 376 KB Output is correct
59 Correct 83 ms 468 KB Output is correct
60 Correct 101 ms 332 KB Output is correct