Submission #863861

#	Time	Username	Problem	Language	Result	Execution time	Memory
863861		prairie2022	Sandcastle 2 (JOI22_ho_t5)	C++17	9 / 100	20 ms	1464 KiB

Main

#include<bits/stdc++.h>
typedef long long ll;
#define fastio cin.tie(0), cout.tie(0), ios::sync_with_stdio(0);
using namespace std;

int main(){
    //fastio
    int h, w;
    cin >> h >> w;
    vector<int> val;
    vector<vector<int>> a(h, vector<int> (w));
    for(int i=0; i<h; i++){
        for(int j=0; j<w; j++){
            cin >> a[i][j];
            val.push_back(a[i][j]);
        }
    }
    sort(val.begin(), val.end());
    for(int i=0; i<h; i++){
        for(int j=0; j<w; j++)
            a[i][j] = lower_bound(val.begin(), val.end(), a[i][j])-val.begin();
    }
    if(h>1) return 0;
    ll ans = 0;
    int cb;
    for(int j=0; j<w; j++){
        if(j && a[0][j-1]<a[0][j]) cb++;
        else cb = 1;
        ans += cb;
    }
    for(int j=0; j<w; j++){
        if(j && a[0][j-1]>a[0][j]) cb++;
        else cb = 0;
        ans += cb;
    }
    cout << ans << '\n';
    return 0;
}

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