Submission #1041804


Source Code Expand

#include <bits/stdc++.h>

using namespace std;

typedef long double ld;
typedef long long ll;

const int M = 100100;

int n, k;
ll f[M], g[M];
ll a[M], s[M];
ll l[M], r[M];

void read() {
  cin >> n >> k;
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
  }
  for (int i = 0; i < n; ++i) {
    s[i + 1] = s[i] + a[i];
  }
}

void kill() {
  ll ans = 0;
  for (int i = 0; i < n; ++i) {
    l[i + 1] = l[i] + max<ll>(0, a[i]);
  }
  for (int i = n - 1; i >= 0; --i) {
    r[i] = r[i + 1] + max<ll>(0, a[i]);
  }

  for (int i = 0; i + k <= n; ++i) {
    ll sum = max<ll>(0, s[i + k] - s[i]);
    ans = max(ans, sum + l[i] + r[i + k]);
  }

  cout << ans << endl;
}

int main() {
#ifdef LOCAL
  assert(freopen("b.in", "r", stdin));
#endif

  ios_base::sync_with_stdio(false);

  read();
  kill();

}

Submission Info

Submission Time
Task B - Contiguous Repainting
User Arterm
Language C++14 (GCC 5.4.1)
Score 400
Code Size 851 Byte
Status AC
Exec Time 18 ms
Memory 3328 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 4
AC × 26
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt
Case Name Status Exec Time Memory
0_00.txt AC 3 ms 256 KB
0_01.txt AC 3 ms 256 KB
0_02.txt AC 3 ms 256 KB
0_03.txt AC 3 ms 256 KB
1_00.txt AC 3 ms 256 KB
1_01.txt AC 3 ms 256 KB
1_02.txt AC 3 ms 256 KB
1_03.txt AC 12 ms 3328 KB
1_04.txt AC 17 ms 3328 KB
1_05.txt AC 18 ms 3328 KB
1_06.txt AC 17 ms 3328 KB
1_07.txt AC 17 ms 3328 KB
1_08.txt AC 18 ms 3328 KB
1_09.txt AC 17 ms 3328 KB
1_10.txt AC 17 ms 3328 KB
1_11.txt AC 18 ms 3328 KB
1_12.txt AC 17 ms 3328 KB
1_13.txt AC 17 ms 3328 KB
1_14.txt AC 17 ms 3328 KB
1_15.txt AC 17 ms 3328 KB
1_16.txt AC 17 ms 3328 KB
1_17.txt AC 17 ms 3328 KB
1_18.txt AC 18 ms 3328 KB
1_19.txt AC 17 ms 3328 KB
1_20.txt AC 17 ms 3328 KB
1_21.txt AC 17 ms 3328 KB