Submission #484465

#	Time	Username	Problem	Language	Result	Execution time	Memory
484465		hoanghq2004	Building Bridges (CEOI17_building)	C++14	30 / 100	3096 ms	2536 KiB

building

#include <bits/stdc++.h>
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")

using namespace std;

const int Nmax = 1e5 + 10;

int n, h[Nmax], s[Nmax];
long long f[Nmax];

int main() {
    ios :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    for (int i = 1; i <= n; ++i) cin >> h[i];
    for (int i = 1; i <= n; ++i) cin >> s[i];
    for (int i = 1; i <= n; ++i) s[i] += s[i - 1];
    for (int i = 2; i <= n; ++i) {
        f[i] = 1e18;
        for (int j = 1; j < i; ++j) {
            f[i] = min(f[i], f[j] + s[i - 1] - s[j] + 1LL * (h[i] - h[j]) * (h[i] - h[j]));
        }
    }
    cout << f[n];
}

Compilation message (stderr)

building.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization ("O3")
      | 
building.cpp:4: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    4 | #pragma GCC optimization ("unroll-loops")
      |

• Subtask 1: 30 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40