Submission #1808212

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef long long lint;
typedef long double llf;
typedef pair<lint, int> pi;
const int mod = 1e9 + 7;
const int MAXN = 100005;

int n, m, k;
lint dp[305][MAXN];
int a[MAXN];

int main(){
	scanf("%d %d %d",&n,&m,&k);
	for(int i=1; i<=n; i++){
		scanf("%d",&a[i]);
	}
	for(int i=1; i<=k; i++){
		deque<pi> dq;
		dp[i][0] = -1e18;
		for(int j=1; j<=n; j++){
			while(!dq.empty() && dq.front().second < j - m){
				dq.pop_front();
			}
			while(!dq.empty() && dq.back().first < dp[i-1][j-1]){
				dq.pop_back();
			}
			dq.push_back(pi(dp[i-1][j-1], j-1));
			dp[i][j] = dq.front().first + 1ll * a[j] * i;
		}
	}
	cout << *max_element(dp[k], dp[k] + n + 1) << endl;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:14:28: 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:16:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
                    ^

Judge Result