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How do we do Base64 encoding and decoding a file from the system using C programming?

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2+ years of it training experienece

based on datatype it will store the data and encryption should be based on some alogirhtms like hashing, RSA, ... sha-1
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Related Questions

Other than in a for statement, when is the comma operator used?
Example : int i,j; i=(10,20,30,40); j=10,20,30,40; printf("%d",i); printf("%d",j); // in this program output of i will be 40 and j will be 10 // In interviews you can face such type of comma operator related questions.
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