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Logical operator

You can combine multiple relations or logical operations by logical operation. The logical operators are negation (!), logical AND (&&), and logical OR (||), #include<stdio.h> main(){   int c1 = 1,c2 = 2,c3 = 3;   if((c1 < c2) && (c1<c3)){      printf("\n c1 is less than c2 and c3");   }   if (!(c1< c2)){      printf("\n c1 is greater than c2");   }   if ((c1 < c2)||(c1 < c3)){      printf("\n c1 is less than c2 or c3 or both");   } } c1 is less than c2 and c3 c1 is less than c2 or c3 or both