Slader How many ordered pairs of integers (a, b) are needed to guarantee that there are two orderedpairs (a1, b1) and (a2, b2) such thata1anda2have the same remainder when divided by 5andb1andb2have the same remainder when divided by 5?

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Cprogram to find //perimeter of rectangle printf(" \n perimeter of rectangle \n"); printf(""); printf("\n enter width and length of the rectangle : "); scanf("%f%f", & width,& length); perimeter = 2 * (width + length); printf("perimeter of rectangle is: %.3f", perimeter);  

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