## Solución al problema número 13291 de UVA - 13291.

Cualquier duda no dudes en contactar.

``````
//Problema J Swerc 2017 Frosting on the Cake

#include <bits/stdc++.h>
using namespace std;
int main(){
long long int y,p,w; int cases;
while(scanf("%d",&cases)!=EOF)
{
y=0; p=0; w=0;
int arr1[cases]; int arr2[cases];
for(int i=0; i<cases;i++) cin>>arr1[i];
for(int i=0; i<cases;i++) cin>>arr2[i];

long long int aw=0,ay=0,ap=0,aw1=0,ay1=0,ap1=0,aw2=0,ay2=0,ap2=0,aw3=0,ay3=0,ap3=0;

for(int i=0; i<cases;i++)
{
if(i<3)
{
for(int j=0; j<cases;j++)
{
if(i==0){      aw+=arr1[j]; if(j+1>=cases) break; j++; ay+=arr1[j]; if(j+1>=cases) break; j++; ap+=arr1[j];  }
else if(i==1){ ay+=arr1[j]; if(j+1>=cases) break; j++; ap+=arr1[j]; if(j+1>=cases) break; j++; aw+=arr1[j];  }
else{          ap+=arr1[j]; if(j+1>=cases) break; j++; aw+=arr1[j]; if(j+1>=cases) break; j++; ay+=arr1[j];  }
}
if(i==0){ ap1=ap; aw1=aw; ay1=ay; }
else if(i==1){ ap2=ap; aw2=aw; ay2=ay; }
else{ ap3=ap; aw3=aw; ay3=ay; }
y+=arr2[i]*ay; p+=arr2[i]*ap; w+=arr2[i]*aw; ap=0; aw=0; ay=0;
}
else
{
if(i%3==0){       y+=arr2[i]*ay1; p+=arr2[i]*ap1; w+=arr2[i]*aw1; }
else if(i%3==1){  y+=arr2[i]*ay2; p+=arr2[i]*ap2; w+=arr2[i]*aw2; }
else{             y+=arr2[i]*ay3; p+=arr2[i]*ap3; w+=arr2[i]*aw3; }
}
}
cout<<y<<" "<<p<<" "<<w<<endl;
}
return 0;
}

//Problema J Swerc 2017 Frosting on the Cake CON MATRIZ
/*
#include <bits/stdc++.h>
using namespace std;
int main(){
long long int y,p,w; int cases;
while(scanf("%d",&cases)!=EOF)
{
y=0; p=0; w=0;
int arr1[cases]; int arr2[cases];
for(int i=0; i<cases;i++) cin>>arr1[i];
for(int i=0; i<cases;i++) cin>>arr2[i];

long long int vals[3][3];
memset(vals,0,sizeof(vals));
for(int i=0; i<cases;i++)
{
if(i<3)
{
for(int j=0; j<cases;j++)
{
vals[i][(j+i)%3]+=arr1[j];
}
w+=(arr2[i]*vals[i][0]); y+=(arr2[i]*vals[i][1]); p+=(arr2[i]*vals[i][2]);
}
else
{
w+=(arr2[i]*vals[i%3][0]); y+=(arr2[i]*vals[i%3][1]); p+=(arr2[i]*vals[i%3][2]);
}
}
cout<<y<<" "<<p<<" "<<w<<endl;
}
return 0;
}
*/``````

### No te pierdas nada.

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