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## FINAL EXAM REVIEW!!

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**FINAL EXAM REVIEW!!**Lets play C-eopardy!!! (Answer in the form of answers!!) Feel free to hum along!**Arrays**Functions & Macros Strings Pointers Loops 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300**Question:**Given the following: function prototype: void my_func(int array[][3]); variable declaration: int X[2][3]; Which function call can you use to pass a 2-dimensional array to a function? my_func(X); my_func(&X[0][0]); my_func(X[0]);**Answer**All of them**Question**What is printed: int a[3][3]={0}, i,j; for(i=0;i<3;i++) for(j=i;j<3;j++) a[i][j]=i*j; for(i=0;i<3;i++) printf(“%d\t”,a[i][1]);**Answer**0 1 0**Question**What is printed: int a[10]={0}, n=27212, abc; while(n>0) { abc=n%10; if(a[abc]) { printf(“%d\t”,abc); break; } a[abc]=1; n/=10; }**Answer**2**Question**Given the following: #define DOUBLE(x) (2*x) What is the output for printf(“%d”,DOUBLE(1+2));**Answer**4**Question**Write the following equation as a C statement using functions from the math.h library. y=(en ln(b))2**Answer**y=pow(exp(n*log(b)),2);**Question**Given the following program: main() { int n = 10; printf(“%d”,funct1(n)); } int funct1(int n) { if(n>0) return(n + funct1(n-1)); } What is the o/p ?**Answer**55**Question**Given the following program: #include <stdio.h> #define ROWS 3 #define COLUMNS 4 int z[ROWS][COLUMNS] = {1,2,3,4,5,6,7,8,9,10,11,12}; int main() { int a, b, c; for(a=0;a<ROWS,++a) { c = 999; for(b=0;b<COLUMNS;++b) if(z[a][b] < c) c = z[a][b]; printf(“%d ”,c); } What is the o/p?**Answer**1 5 9 (smallest value within each row)**Question**What is the output of the following code fragment: inti; char x[80] = “gorilla”; char y[80] = “giraffe”; char z[3][80]; strcpy(z[0],y); strcpy(z[1],strcat(x,y)); strcpy(z[2],x); for(i=0;i<3;i++) printf(“%s\n”,z[i]);**Answer**giraffe gorillagiraffe gorillagiraffe**Question**What is the final value of string s1? strcpy(s1,"computer"); strcpy(s2,"science"); if(strcmp(s1,s2) < 0) strcat(s1,s2); else strcat(s2,s1); s1[strlen(s1)-6] = '\0';**Answer**computers**Question**If ‘i’ is a variable and ‘p’ points to ‘i’, which of the following expression are aliases for ‘i’ ? *p e) *i &p f) &i *&p g) *&i &*p h) &*i**Answer**a) g)**Question**Consider following declaration: float table[2][3] = { {1.1, 1.2, 1.3}, {2.1, 2.2, 2.3} }; What is the value of ? *(*(table+1));**Answer**2.1**Question**Given: int x[]={-1,-2,-3,-4}, *px, **ppx; px=x; ppx=&px; Which command will display -3. A: printf(“%d”,**ppx+2); B: printf(“%d”,*(*ppx+2)); C: printf(“%d”,*ppx+2); D: printf(“%d”,*(ppx+2));**Answer**B**Question**Given the following: int i=0,n=465; do { n/=10; i++; } while(n>0); printf(“i=%d\n”,i); What is printed?**Answer**3**Question**What is printed: int i=10; while(i-- +2); printf(“%d”,i);**Answer**-3**Question**What is displayed by the following code: #include <stdio.h> main() { int i,j,x=0; for (i=0; i<5; ++i) { for(j=0;j<i;++j) x += (i+j-1); printf(“%d”, x); break; } printf(“\nx = %d”,x); }**Answer**0 x = 0**Arrays**Functions & Macros Strings Pointers Loops 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300