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Introduction [cont'd]
Input Output Functions [cont'd]
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Constants in Introduction of Programming in C
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What is C Constants? 
Const is a datatype qualifier. Const variable must not change the data value at run time.
Syntax 
const datatype variable_name = variable_value;
Program
#include
void main(){
   const float pi = 3.14;
   printf("PI value is %f",pi);
}
Output 
PI value is 3.140000
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