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for loop in c

for is a keyword of c programming language. for loop is very frequently used in c source codes. We will discuss how to use for loop and it's variations with different program examples.

for ( initialization ; condition checking ; increment or decrement )
all the three are optional.

initialization is used to initialize variables.
for example for(a=1,b=2;;) // and b are variables

condition checking used for checking a condition.