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1197D.cpp
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39 lines (37 loc) · 902 Bytes
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#include<bits/stdc++.h>
#define intl long long
using namespace std;
int main(){
intl n,m,k;
cin>>n>>m>>k;
intl a[n];
intl b[n];
intl x=0;
for(intl i=0;i<n;i++){cin>>a[i];b[i]=x+a[i];x=b[i];}
intl dp[n+1];
for(int i=0;i<n+1;i++)dp[i]=0;
int ls=0;
intl mx=0;
intl p=0;
dp[0]=max(p,a[0]-k);
for(int i=1;i<n;i++){
// int f=0;
// if(dp[i-1]==0 && i!=0){
// f=1;
// }
cout<<dp[i-1]+a[i]-k*ceil((i-ls+1)/3.0) <<" "<<ceil((i-ls+1)/3.0)<<"\n";
if(dp[i-1]+a[i]-k*ceil((i-ls+1)/3.0)>0){
dp[i]=dp[i-1]+a[i]-k*ceil((i-ls+1)/3.0);
}
else{
intl p=0;
dp[i]=max(p,a[i]-k);
// cout<<"h\n";
ls=i;
}
mx=max(mx,dp[i]);
//cout<<dp[i]<<" ";
}
cout<<"\n";
cout<<mx<<"\n";
}