Submission #1320497

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Source Code Expand

#include <bits/stdc++.h>
int N, M, K, ptr[100009]; long long dp[309][100009];
int main() {
	scanf("%d %d %d", &N, &M, &K);
	for (int i = 0; i < N; i++) scanf("%lld", &dp[0][i]);
	for (int i = 1; i < K; i++) {
		int pl = 0, pr = 0;
		for (int j = 0; j < N; j++) {
			if (j >= i) dp[i][j] = dp[i - 1][ptr[pl]] + 1LL * (i + 1) * dp[0][j];
			if (ptr[pl] == j - M) pl++;
			while (pl < pr && dp[i - 1][ptr[pr - 1]] < dp[i - 1][j]) pr--;
			ptr[pr++] = j;
		}
	}
	printf("%lld\n", *std::max_element(dp[K - 1], dp[K - 1] + N));
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:4:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d", &N, &M, &K);
                               ^
./Main.cpp:5:54: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 0; i < N; i++) scanf("%lld", &dp[0][i]);
                                                      ^

Judge Result