Submission #1042115


Source Code Expand

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <algorithm>
typedef long long ll;
#define rep(i, a, b) for (int i = a; i <= b; ++ i)
#define per(i, a, b) for (int i = a; i >= b; -- i)
const int maxn = 100010;
using namespace std;
int n, k, a[maxn]; ll L[maxn], R[maxn];
int main() {
	scanf("%d%d", &n, &k);
	rep(i, 1, n) scanf("%d", &a[i]);
	rep(i, 1, n) L[i] = L[i - 1] + max(a[i], 0);
	per(i, n, 1) R[i] = R[i + 1] + max(a[i], 0); ll ans = 0, now = 0;
	rep(i, 1, k) now += a[i];
	rep(i, 1, n - k + 1) ans = max(ans, L[i - 1] + max(now, 0LL) + R[i + k]), now += a[i + k] - a[i];
	printf("%lld", ans);
	return 0;
}

Submission Info

Submission Time
Task B - Contiguous Repainting
User mjy0724
Language C++14 (GCC 5.4.1)
Score 400
Code Size 671 Byte
Status AC
Exec Time 17 ms
Memory 2176 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &k);
                       ^
./Main.cpp:14:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  rep(i, 1, n) scanf("%d", &a[i]);
                                 ^

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 2 ms 256 KB
0_01.txt AC 2 ms 256 KB
0_02.txt AC 2 ms 256 KB
0_03.txt AC 2 ms 256 KB
1_00.txt AC 3 ms 256 KB
1_01.txt AC 2 ms 256 KB
1_02.txt AC 2 ms 256 KB
1_03.txt AC 12 ms 2176 KB
1_04.txt AC 16 ms 2176 KB
1_05.txt AC 17 ms 2176 KB
1_06.txt AC 17 ms 2176 KB
1_07.txt AC 16 ms 2176 KB
1_08.txt AC 16 ms 2176 KB
1_09.txt AC 16 ms 2176 KB
1_10.txt AC 16 ms 2176 KB
1_11.txt AC 16 ms 2176 KB
1_12.txt AC 16 ms 2176 KB
1_13.txt AC 16 ms 2176 KB
1_14.txt AC 16 ms 2176 KB
1_15.txt AC 16 ms 2176 KB
1_16.txt AC 17 ms 2176 KB
1_17.txt AC 16 ms 2176 KB
1_18.txt AC 16 ms 2176 KB
1_19.txt AC 16 ms 2176 KB
1_20.txt AC 16 ms 2176 KB
1_21.txt AC 16 ms 2176 KB