Submission #704220

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
704220	2023-03-02 00:57:45	socpite	Xylophone (JOI18_xylophone)	C++14	100 / 100	168 ms	456 KiB

xylophone

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#include "xylophone.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn = 5e3+5;
int n;
int A[maxn];
int d[2][maxn];
int gt(int l, int r){
    int mn = n, mx = 1;
    for(int i = l; i <= r; i++){
        mn = min(mn, A[i]);
        mx = max(mx, A[i]);
    }
    return mx - mn;
}
void solve(int N){
    n = N;
    for(int i = 2; i <= n; i++){
        d[0][i] = query(i-1, i);
    }
    for(int i = 3; i <= n; i++){
        d[1][i] = query(i-2, i);
    }
    for(A[1] = 1; A[1] <= n; A[1]++){
        if(A[1] + d[0][2] > n)continue;
 
 
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Compilation message (stderr)

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:68:5: warning: 'p2' may be used uninitialized in this function [-Wmaybe-uninitialized]
   68 |     if(p1 > p2)for(int i = 1; i <= n; i++)A[i] = n+1-A[i];
      |     ^~
xylophone.cpp:68:5: warning: 'p1' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 11 / 11
• Subtask 2: 36 / 36
• Subtask 3: 53 / 53