Test question C: question brushing statistics

【 Problem description 】 Xiao Ming decided to brush the questions and prepare for the Blue Bridge Cup competition from next Monday . He plans to... Every day from Monday to Friday do a questions , Do... Every day on Saturdays and Sundays b questions . Please help Xiao Ming calculate , According to the plan, he will be in On the first few days, the number of questions is greater than or equal to n topic ？

【 Input format 】 The input line contains three integers a, b and n.

【 Output format 】 Output an integer representing the number of days .

【 The sample input 】 10 20 99

【 Sample output 】 8

【 Evaluate use case size and conventions 】 about 50% The evaluation case of ,1 ≤ a, b, n ≤ 10^6 . about 100% The evaluation case of ,1 ≤ a, b, n ≤ 10^18

#include<iostream>
using namespace std;
int main()
{
    int date1=0;
    long long a,b,n;
    cin>>a>>b>>n;
    while (n>0)
    {
        for(int i=1;i<=5;i++)
        {
            if(n<=0)
            {
                break;
            }
            n=n-a;
            date1++;
        }
        for(int i=6;i<=7;i++)
        {
            if(n<=10)
            {
                break;;
            }
            n=n-b;
            date1++;
        }
    }
    cout<<date1<<endl;
    return 0;
}