How do I add two large integer numbers in C?

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D Subba Rao

We have long int datatype in c programming so use it
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Using long data type
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Tutor

declare your variable as long int/long long int. if you want to add only positive numbers then declare variables as long unsigned int
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Computer Science C++, JAVA, Data Structure

use data type 'long' instead of 'int' ....
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Tutor

Use long int
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Engineer

Use long instead of int. long has 4 bytes. int has 4 bytes in C++ and in some compiler of C also. But in some compiler, it's 2 bytes.
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