oj.uz

Submission #233588

# Submission time Handle Problem Language Result Execution time Memory
233588 2020-05-21T02:59:34 Z lfsfrlvng Xylophone (JOI18_xylophone) C++14
100 / 100
 114 ms 20844 KB 
#include <iostream>
using namespace std;

//#define unx xun

#ifndef unx
#include "xylophone.h"
#endif

int a[5010], b[5010], sign[5010], x[5010], y[5010];
int asked[5010][5010];

#ifdef unx

int n;

int query(int s,int t){
    int mx=0, mn=5000;
    for(int i=s;i<=t;++i) mx=mx>a[i]?mx:a[i], mn=mn>a[i]?a[i]:mn;
    return mx-mn;
}
void answer(int i,int val){
    cout<<val<<" ";
}

#endif

int ask(int s,int t){
    if(asked[s][t]) return asked[s][t]; else return asked[s][t]=query(s,t);
}

void solve(int n){
    for(int i=2;i<=n;++i)   x[i-1]=ask(i-1,i);
    for(int i=2;i<n;++i)   y[i-1]=ask(i-1,i+1);

    if(x[1]+x[2]==y[1])
        sign[1]=sign[2]=1;
    else
        sign[1]=1, sign[2]=-1;

    for(int i=3;i<n;++i){
        if(x[i-1] + x[i] == y[i-1])
            sign[i]=sign[i-1];
        else{
            sign[i]=-sign[i-1];
        }
    }
    a[1]=0;
    int dif1=0, dif2=0;
    for(int i=1;i<n;++i){
        dif1=min(dif1,a[i+1]=a[i] + (sign[i]>0 ? x[i] : -x[i]));
        dif2=min(dif2,b[i+1]=b[i] + (sign[i]>0 ? -x[i] : x[i]));
    }
    int o1,z1, o2,z2;
    for(int i=1;i<=n;++i){
        a[i]-=dif1-1, b[i]-=dif2-1;
        if(a[i]==1) o1=i; if(a[i]==n) z1=i;
        if(b[i]==1) o2=i; if(b[i]==n) z2=i;
    }

    if(o1<z1)
        for(int i=1;i<=n;++i) answer(i,a[i]);
    else
        for(int i=1;i<=n;++i) answer(i,b[i]);
}

#ifdef unx
main(){
    freopen("xylophone.inp","r",stdin);

    cin>>n;
    for(int i=1;i<=n;++i) cin>>a[i];
    //cout<<solve(n)<<"\n";
    solve(n);
}
#endif

Compilation message

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:57:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
         if(a[i]==1) o1=i; if(a[i]==n) z1=i;
         ^~
xylophone.cpp:57:27: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
         if(a[i]==1) o1=i; if(a[i]==n) z1=i;
                           ^~
xylophone.cpp:58:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
         if(b[i]==1) o2=i; if(b[i]==n) z2=i;
         ^~
xylophone.cpp:58:27: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
         if(b[i]==1) o2=i; if(b[i]==n) z2=i;
                           ^~
xylophone.cpp:54:16: warning: variable 'o2' set but not used [-Wunused-but-set-variable]
     int o1,z1, o2,z2;
                ^~
xylophone.cpp:54:19: warning: variable 'z2' set but not used [-Wunused-but-set-variable]
     int o1,z1, o2,z2;
                   ^~
xylophone.cpp:61:5: warning: 'z1' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(o1<z1)
     ^~
xylophone.cpp:61:5: warning: 'o1' may be used uninitialized in this function [-Wmaybe-uninitialized]

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 7 ms 768 KB Output is correct
5 Correct 7 ms 768 KB Output is correct
6 Correct 7 ms 768 KB Output is correct
7 Correct 6 ms 768 KB Output is correct
8 Correct 6 ms 768 KB Output is correct
9 Correct 7 ms 788 KB Output is correct
10 Correct 6 ms 768 KB Output is correct
11 Correct 7 ms 768 KB Output is correct
12 Correct 7 ms 768 KB Output is correct
13 Correct 7 ms 768 KB Output is correct
14 Correct 7 ms 768 KB Output is correct
15 Correct 7 ms 768 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 7 ms 768 KB Output is correct
5 Correct 7 ms 768 KB Output is correct
6 Correct 7 ms 768 KB Output is correct
7 Correct 6 ms 768 KB Output is correct
8 Correct 6 ms 768 KB Output is correct
9 Correct 7 ms 788 KB Output is correct
10 Correct 6 ms 768 KB Output is correct
11 Correct 7 ms 768 KB Output is correct
12 Correct 7 ms 768 KB Output is correct
13 Correct 7 ms 768 KB Output is correct
14 Correct 7 ms 768 KB Output is correct
15 Correct 7 ms 768 KB Output is correct
16 Correct 9 ms 1280 KB Output is correct
17 Correct 14 ms 2304 KB Output is correct
18 Correct 24 ms 3704 KB Output is correct
19 Correct 24 ms 4472 KB Output is correct
20 Correct 26 ms 4344 KB Output is correct
21 Correct 26 ms 4352 KB Output is correct
22 Correct 25 ms 4344 KB Output is correct
23 Correct 24 ms 4472 KB Output is correct
24 Correct 29 ms 4472 KB Output is correct
25 Correct 24 ms 4412 KB Output is correct
26 Correct 27 ms 4344 KB Output is correct
27 Correct 25 ms 4400 KB Output is correct
28 Correct 26 ms 4344 KB Output is correct
29 Correct 29 ms 4344 KB Output is correct
30 Correct 24 ms 4352 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 7 ms 768 KB Output is correct
5 Correct 7 ms 768 KB Output is correct
6 Correct 7 ms 768 KB Output is correct
7 Correct 6 ms 768 KB Output is correct
8 Correct 6 ms 768 KB Output is correct
9 Correct 7 ms 788 KB Output is correct
10 Correct 6 ms 768 KB Output is correct
11 Correct 7 ms 768 KB Output is correct
12 Correct 7 ms 768 KB Output is correct
13 Correct 7 ms 768 KB Output is correct
14 Correct 7 ms 768 KB Output is correct
15 Correct 7 ms 768 KB Output is correct
16 Correct 9 ms 1280 KB Output is correct
17 Correct 14 ms 2304 KB Output is correct
18 Correct 24 ms 3704 KB Output is correct
19 Correct 24 ms 4472 KB Output is correct
20 Correct 26 ms 4344 KB Output is correct
21 Correct 26 ms 4352 KB Output is correct
22 Correct 25 ms 4344 KB Output is correct
23 Correct 24 ms 4472 KB Output is correct
24 Correct 29 ms 4472 KB Output is correct
25 Correct 24 ms 4412 KB Output is correct
26 Correct 27 ms 4344 KB Output is correct
27 Correct 25 ms 4400 KB Output is correct
28 Correct 26 ms 4344 KB Output is correct
29 Correct 29 ms 4344 KB Output is correct
30 Correct 24 ms 4352 KB Output is correct
31 Correct 50 ms 9128 KB Output is correct
32 Correct 67 ms 12920 KB Output is correct
33 Correct 93 ms 18040 KB Output is correct
34 Correct 107 ms 20600 KB Output is correct
35 Correct 97 ms 20600 KB Output is correct
36 Correct 97 ms 20600 KB Output is correct
37 Correct 105 ms 20600 KB Output is correct
38 Correct 113 ms 20704 KB Output is correct
39 Correct 109 ms 20600 KB Output is correct
40 Correct 96 ms 20600 KB Output is correct
41 Correct 114 ms 20752 KB Output is correct
42 Correct 100 ms 20600 KB Output is correct
43 Correct 106 ms 20728 KB Output is correct
44 Correct 100 ms 20748 KB Output is correct
45 Correct 106 ms 20596 KB Output is correct
46 Correct 105 ms 20600 KB Output is correct
47 Correct 103 ms 20728 KB Output is correct
48 Correct 109 ms 20712 KB Output is correct
49 Correct 103 ms 20728 KB Output is correct
50 Correct 103 ms 20680 KB Output is correct
51 Correct 101 ms 20700 KB Output is correct
52 Correct 110 ms 20592 KB Output is correct
53 Correct 108 ms 20668 KB Output is correct
54 Correct 109 ms 20600 KB Output is correct
55 Correct 107 ms 20728 KB Output is correct
56 Correct 112 ms 20844 KB Output is correct
57 Correct 111 ms 20704 KB Output is correct
58 Correct 101 ms 20576 KB Output is correct
59 Correct 99 ms 20600 KB Output is correct
60 Correct 113 ms 20600 KB Output is correct