Submission #676647

#	Time	Username	Problem	Language	Result	Execution time	Memory
676647		owoovo	Sandcastle 2 (JOI22_ho_t5)	C++14	0 / 100	0 ms	312 KiB

Main

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int ori[500010];
int main(){
    ll n,m;
    cin>>n>>m;
    if(n!=1){
        cout<<"0\n";
        return 0;
    }
    for(int i=0;i<m;i++){
        cin>>ori[i];
    }
    ll ans=0;
    ll nowc=2;
    for(int i=2;i<m;i++){
        if(ori[i]>ori[i-1]^ori[i-1]>ori[i-2]){
            ans+=nowc*(nowc-1)/2+nowc-1;
            nowc=2;
        }else{
            nowc++;
        }
    }
    ans+=nowc*(nowc-1)/2+nowc;
    cout<<ans<<'\n';
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:18:18: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses]
   18 |         if(ori[i]>ori[i-1]^ori[i-1]>ori[i-2]){
      |            ~~~~~~^~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 5
• Subtask 4: 0 / 56
• Subtask 5: 0 / 20