c++ - How to optimize this code to remove time exceeding error on hacker Earth? -


input - 4 integers- t=test cases, , b= positive numbers, n output - print nth number divisible or b. example- = 2, b= 3, n=10 numbers divisble 2 or 3= 2,3,4,6,8,9,10,12,14,15 10th number divisible 2 or 3 = 15. output = 15

    #include<iostream>     #include<stack>     #include<stdio.h>     using namespace std;     int main()    {       int t;       stack<int> s;       scanf("%d",&t);        for(int t=1;t<=t;t++)       {          int a;          scanf("%d",&a);           int b;          scanf("%d",&b);           int n;          scanf("%d",&n);           for(int i=0;s.size()<=n;i++)          {            if(i%a == 0 || i%b == 0)                s.push(i);           }           cout<<s.top();      }       return 0;   }


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