Silly Bakery PROG 1012 (BUGGED)

#include<stdio.h>

int cake[5];
int storecake[5];
/*
int cal(int start,int x)
{
    int add = 0;
    int tx = x;
    for(int i=start;i>=1&&tx!=0;i--){
        if(storecake[i] >= tx){
            tx = 0;
            storecake[i]-=tx;
        }
    }
    return add;
}*/
int main()
{
    storecake[0] = 1e9;
    int n;
    scanf("%d",&n);
    for(int i=0;i<n;i++){
        for(int j=0;j<5;j++){
            int x;
            scanf("%d",&x);
            cake[j]+=x;
        }
    }
    int ans = 0;
    //a  full
    ans += cake[0];

    //b  3/4
    ans += cake[1];
    storecake[3] += cake[1];

    //c  1/2
    ans += (cake[2]+1)/2;
    storecake[2] += cake[2]%2;
//  ans += cal(3,cake[3]);

    //d  1/4
    if(storecake[3]>=cake[3]){ //en
        storecake[3] -= cake[3];
    }
    else if(storecake[3] < cake[3]){ //nen
        cake[3] -= storecake[3];
        if(storecake[2]*2 >= cake[3]){ //en (go to 1/2)
            storecake[2] -= (cake[3]+1)/2;
            storecake[3] += cake[3]%2;
            cake[3] = 0;
        }
        else if(storecake[2]*2 < cake[3]){ //nen
            cake[3] -= storecake[2]*2;
            if(storecake[1]*3 >= cake[3]){ // en (go to 3/4)
                storecake[1] -= (cake[3]+2)/3;
                storecake[cake[3]%3] += 1;
                cake[3] = 0;
            }else if(storecake[1]*3 < cake[3]){ //nen
                cake[3] -= storecake[3]*3;
                //go to 1/1
                ans += (cake[3]+3)/4;

                storecake[cake[3]%4] += 1;
                /*
                if(cake[3]%4 == 3){
                    storecake[3] += 1;
                }else if(cake[3]%4 == 2){
                    storecake[2] += 1;
                }else if(cake[3]%4 == 1){
                    storecake[1] += 1;
                }*/
                cake[3] = 0;
            }
        }
    }

    //e  1/8
    if(storecake[4]>=cake[4]){ //en
        storecake[4] -= cake[4];
    }
    else if(storecake[4] < cake[4]){ //nen
        cake[4] -= storecake[4];
        if(storecake[3]*2 >= cake[4]){ //en (go to 1/4)
            storecake[3] -= (cake[4]+1)/2;
            storecake[4] += cake[4]%2;
            cake[4] = 0;
        }
        else if(storecake[3]*2 < cake[4]){ //nen
            cake[4] -= storecake[3]*2;
            if(storecake[2]*4 >= cake[4]){ // en (go to 1/2)
                storecake[2] -= (cake[4]+3)/4;
                if(cake[4]%4 == 1){
                    storecake[3] += 1;
                    storecake[4] += 1;
                }else if(cake[4]%4 == 2){
                    storecake[3] += 1;
                }else if(cake[4]%4 == 3){
                    storecake[4] += 1;
                }
                cake[4] = 0;
            }else if(storecake[2]*4 < cake[4]){ //nen
                cake[4] -= storecake[4]*4;
                //go to 1/1
                ans += (cake[4]+7)/8;

                if(cake[4]%8 == 1){
                    storecake[1] += 1;
                    storecake[4] += 1;
                }else if(cake[4]%8 == 2){
                    storecake[1] += 1;
                }else if(cake[4]%8 == 3){
                    storecake[4] += 1;
                    storecake[2] += 1;
                }else if(cake[4]%8 == 4){
                    storecake[2] += 1;
                }else if(cake[4]%8 == 5){
                    storecake[4] += 1;
                    storecake[3] += 1;
                }else if(cake[4]%8 == 6){
                    storecake[3] += 1;
                }else if(cake[4]%8 == 7){
                    storecake[4] += 1;
                }

                //storecake[cake[3]%4] += 1;
                /*
                if(cake[3]%4 == 3){
                    storecake[3] += 1;
                }else if(cake[3]%4 == 2){
                    storecake[2] += 1;
                }else if(cake[3]%4 == 1){
                    storecake[1] += 1;
                }*/
                cake[4] = 0;
            }
        }
    }
    printf("%d",ans);
}