Submission #529466

#	Time	Username	Problem	Language	Result	Execution time	Memory
529466		wiwiho	Sandcastle 2 (JOI22_ho_t5)	C++14	9 / 100	5 ms	908 KiB

Main

#include <bits/stdc++.h>

#define iter(a) a.begin(), a.end()
#define mp make_pair
#define F first
#define S second
#define eb emplace_back
#define lsort(a) sort(iter(a))
#define gsort(a) sort(iter(a), greater<>())

using namespace std;

typedef long long ll;
typedef long double ld;

using pii = pair<int, int>;

ll iceil(ll a, ll b){
    return (a + b - 1) / b;
}

struct rect{
    int u, d, l, r;
    int cnt = 1;
    int area(){
        return (r - l + 1) * (d - u + 1);
    }
};

rect merge(rect a, rect b){
    rect c;
    c.l = min(a.l, b.l);
    c.r = max(a.r, b.r);
    c.u = min(a.u, b.u);
    c.d = max(a.d, b.d);
    c.cnt = a.cnt + b.cnt;
    return c;
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int h, w;
    cin >> h >> w;

    vector<int> a(w + 2, INT_MAX);

    for(int j = 1; j <= w; j++){
        cin >> a[j];
    }

    vector<int> dpl(w + 2), dpr(w + 2);
    for(int i = 1; i <= w; i++){
        if(a[i - 1] < a[i]) dpl[i] = dpl[i - 1] + 1;
        else dpl[i] = 1;
    }
    for(int i = w; i >= 1; i--){
        if(a[i + 1] < a[i]) dpr[i] = dpr[i + 1] + 1;
        else dpr[i] = 1;
    }

    ll ans = 0;
    for(int i = 1; i <= w; i++){
        ans  += dpl[i] + dpr[i] - 1;
    }
    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