Ow can I insert or delete a line (or record) in the middle of a file?

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What is a protocol in c?

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What should malloc() do?

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main() { int *ptr=(int*)malloc(sizeof(int)); *ptr=4; printf("%d",(*ptr)+++*ptr++); }

2 Answers  

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What is a nested formula?

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How do I read the arrow keys? What about function keys?

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write a program to check whether a given integer is a strong number or not? [Hint: 145=1!+4!+5! =1+24+120 =145]

7 Answers   Calsoft,

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What are extern variables in c?

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void main() {int a[5],i,b=16; for(i=0;i<5;i++) a[i]=2*i; f(a,5,b); for(i=0;i<5;i++) printf("\n %d",a[i]); printf("\n %d",b); } f(int *x,int n,int y) { int i; for(i=0;i<n;i++) *(x+i)+=2; y=y+2; }wat r the errors in the prg.and improvise the prg to get o/p.?

2 Answers   TCS,

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the maximum width of a c variable name can be a) 6 characters b) 8 characters c) 10 characters d) 20 characters

2 Answers  

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What are header files and what are its uses in C programming?

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What are pointers? Why are they used?

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