my code;-
#include
using namespace std;
bool check(long long int boards[],long long int n,long long int k,long long int t,long long int mintym){
long long int painter=1;
long long int boardsused=0;
for(int i=0;i<n;i++){
if(boardsused+boards[i]>mintym){
painter++;
boardsused=boards[i];
if(painter>k){
return false;
}
}
else{
boardsused +=boards[i];
}
}
return true;
}
long long int mintime(long long int boards[],long long int n,long long int k,long long int t){
long long int sum=0;
for(int i=0;i<n;i++){
sum +=boards[i];
}
long long int s=boards[n-1];
long long int e=sum;
long long int ans=0;
while(s<=e){
long long int mid=(s+e)/2;
if(check(boards,n,k,t,mid)){
ans=mid;
e=mid -1;
}
else{
s=mid+1;
}
}
ans=ans % 10000003;
return ans;
}
int main(){
long long int n; //no of boards
cin>>n;
long long int k; //no of painters
cin>>k;
long long int t; //time taken to print each board by one painter
cin>>t;
long long int boards[100000];
for(int i=0;i<n;i++){
cin>>boards[i];
}
cout<<(mintime(boards,n,k,t)*t) % 10000003<<endl;
}
4 test cases not passed
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