Discussion on: Challenge: Write a program that never stops

// 1
int i = 0;
while(i < 10)
{
    if(i = 5)
        printf("i is 5!");
    i++;
}
// 2
for(int i = 0; i < 10; i++);
{
    printf("hello");
}
// 3
for(int i = 1; i < 11, i++;)
{
    printf("hello");
}