Please check my code

#1

#include<bits/stdc++.h>
using namespace std;
int firstMax=INT_MIN,secondMax = INT_MIN;
int fMaxIdx,sMaxIdx;
void UpdateVal(int st,int ed,int a[]){

for (int i = st; i <=ed ; i ++) 
{ 
    if (a[i] > firstMax) 
    { 
        secondMax = firstMax; 
        firstMax = a[i]; 
        fMaxIdx=i;
    } 
    else if (a[i] > secondMax && a[i] != firstMax) {
        secondMax = a[i]; 
        sMaxIdx=i;
    }
}

}
int main(){
int n,k;
cin>>n>>k;
int a[n+1];
for(int i=1;i<=n;i++){
cin>>a[i];
}
int dp[n+1]={0};
UpdateVal(1,k,a);
for(int i=1;i<=k;i++){
dp[i]=a[i];
}
for(int i=k+1;i<=n;i++){
if(i%k==0){
firstMax=INT_MIN,secondMax = INT_MIN;
UpdateVal(i,i+k,a);
}
dp[i]=(abs(i-fMaxIdx)!=k)?a[i]+firstMax:(abs(i-sMaxIdx)!=k)?a[i]+secondMax:a[i];
}
int ans=INT_MIN;
for(int i=1;i<=n;i++){
ans=max(ans,dp[i]);
}
cout<<ans;
}

#2

@Nikhil-AngRaal-1800886836633817 please provide your code in coding blocks IDE.

#3

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#4