Submission #1032524

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1032524	2024-07-23 23:41:32	vjudge1	Xylophone (JOI18_xylophone)	C++17	47 / 100	61 ms	20908 KiB

xylophone

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#include "xylophone.h"
#include<bits/stdc++.h>
using namespace std;
static int A[5000];
int sv[5010][5010];
int myqry(int l,int r){
    if(l==r)return 0;
    if(sv[l][r])return sv[l][r];
    return sv[l][r]=query(l,r);
}
int ans[5010];
int makesense(int a,int b,int c,int ac){
    return ac==max({a,b,c})-min({a,b,c});
}
void solve(int N) {
    int l=1,r=N-1,res=0;
    while(l<=r){
        int mid=l+r>>1;
        if(myqry(mid,N)==N-1)
            res=mid,l=mid+1;
        else r=mid-1;
    }
    int posof1=res;
    ans[posof1]=1;
    if(posof1>1)
        ans[posof1-1]=myqry(posof1-1,posof1)+1;
    ans[posof1+1]=myqry(posof1,posof1+1)+1;
    for(int i=posof1-2;i>0;i--){
        int k=myqry(i,i+1);
 
 
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Compilation message (stderr)

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:19:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   19 |         int mid=l+r>>1;
      |                 ~^~
xylophone.cpp: At global scope:
xylophone.cpp:4:12: warning: 'A' defined but not used [-Wunused-variable]
    4 | static int A[5000];
      |            ^

• Subtask 1: 11 / 11
• Subtask 2: 36 / 36
• Subtask 3: 0 / 53