Running a loop for four times, with diffe

[Hanske]

Hello,

How can I run for loop

for (int i=0; i<=n; i++)

for four different values for n? I assume I have to have an additional for loop but how could I set it up, so that it only runs for these four values i.e. n=10, n=100, n=1000, n=10000?

int n =10;
for (int j=0; j<=n; j++)
{...



n=n*10}

Something of the sort, right? But the problem is, that there is no restriction set on this loop so it will run infinitely.

[SECMoG1T]

you are almost there

#include <iostream>

int main()
{
    int n =10;

    for(int i=0;i<4; i++)
    {
        std::cout<<"\n\nrunning with "<<n<<" as limit\n";
        char c = getchar();///pause
        for(int j=0; j<n; j++)
        {
           std::cout<<j<<" ";
        }

        n*=10;
    }
}

[Hanske]

Ah, thanks Yolanda!

[keskiverto]

There are other ways too:

#include <iostream>

int main()
{
    for ( int n=10; n<=10000; n*=10 )
    {
        std::cout<<"running with "<<n<<" as limit\n";
        // use n
    }
}

[Chervil]

Or perhaps:

#include <iostream>

int main()
{
    for ( int n : {10, 100, 1000, 10000}  )
    {
        std::cout<<"running with "<<n<<" as limit\n";
        // use n
    }
}