Output:
Exer8

#include

#include

#include

#include

void nextscreen();

void nextscreen2();

void box();

void loop();

void main(){

nextscreen();

nextscreen2();

getche();}

void loop(){

for(int i=1;i<=25;i++) {gotoxy(29+i,16);textcolor(RED);cprintf("Û"); delay(60); } for(int o=1;o<=25;o++) { gotoxy(29+o,16);textcolor(YELLOW);cprintf("°"); } } void nextscreen2() { clrscr();int a,b,x,y,z,choice; for(x=1;x<=77;x++) {gotoxy(2+x,1);textcolor(YELLOW);cprintf("Í");gotoxy(2+x,21);textcolor(YELLOW);cprintf("Í"); }for(y=1;y<=20;y++){ gotoxy(3,1+y);textcolor(YELLOW);cprintf("º");gotoxy(79,1+y);textcolor(YELLOW);cprintf("º"); }gotoxy(3,1);textcolor(YELLOW);cprintf("É");gotoxy(3,21);textcolor(YELLOW);cprintf("È");gotoxy(79,1);textcolor(YELLOW);cprintf("»");gotoxy(79,21);textcolor(YELLOW);cprintf("¼");for(a=1;a<=49;a++) {gotoxy(15+a,4);textcolor(CYAN);cprintf("ß");gotoxy(15+a,17);textcolor(CYAN);cprintf("Ü"); }for(b=1;b<=14;b++) {gotoxy(16,3+b);textcolor(CYAN);cprintf("Þ");gotoxy(65,3+b);textcolor(CYAN);cprintf("Ý "); }gotoxy(35,3);textcolor(GREEN);cprintf("M E N U");gotoxy(30,6);textcolor(GREEN);cprintf("[1] Addition ");gotoxy(30,8);textcolor(GREEN);cprintf("[2] Subtraction");gotoxy(30,10);textcolor(GREEN);cprintf("[3] Multplication");gotoxy(30,12);textcolor(GREEN);cprintf("[4] Division");gotoxy(30,14);textcolor(GREEN);cprintf("[5] Exit");gotoxy(30,15);textcolor(YELLOW);cprintf("Please make your choice:");scanf("%d",&choice);switch(choice){ case 1: float sum=0,x,y; clrscr(); box();gotoxy(30,7);textcolor(LIGHTRED);cprintf("Enter 1st number: ");scanf("%f", &x); gotoxy(30,8);textcolor(LIGHTRED);cprintf("Enter 2nd number: ");scanf("%f", &y); sum=x+y; gotoxy(30,10);textcolor(YELLOW);cprintf("Sum is %f.", sum);getche();nextscreen2(); break; case 2:float dif=0,a,b; clrscr(); box(); gotoxy(30,7);textcolor(LIGHTRED);cprintf("Enter 1st number: ");scanf("%f", &a); gotoxy(30,8);textcolor(LIGHTRED);cprintf("Enter 2nd number: ");scanf("%f", &b); dif=a-b; gotoxy(30,10);textcolor(YELLOW);cprintf("Difference is %f.", dif); getche();nextscreen2();break; case 3:float pro=0,c,d;clrscr();box();gotoxy(30,7);textcolor(LIGHTRED);cprintf("Enter 1st number: ");scanf("%f", &c); gotoxy(30,8);textcolor(LIGHTRED);cprintf("Enter 2nd number: "); scanf("%f", &d); pro=c*d;gotoxy(30,10);textcolor(YELLOW);cprintf("Product is %f.", pro); getche();nextscreen2();break;case 4:float quo=0,e,f;clrscr(); box(); gotoxy(30,7);textcolor(LIGHTRED);cprintf("Enter 1st number: ");scanf("%f", &e); gotoxy(30,8);textcolor(LIGHTRED);cprintf("Enter 2nd number: "); scanf("%f", &f); quo=e/f; gotoxy(30,10);textcolor(YELLOW);cprintf("Quotient is %f.", quo); getche();nextscreen2(); break; case 5:exit (0);nextscreen2();break; default:gotoxy(30,16);textcolor(WHITE);cprintf("Invalid input"); getche();nextscreen2();break; } getche(); } void nextscreen() { clrscr();int a,b,x,y,z; for(x=1;x<=77;x++) {gotoxy(2+x,1);textcolor(YELLOW);cprintf("Í");gotoxy(2+x,21);textcolor(YELLOW);cprintf("Í"); }for(y=1;y<=20;y++){ gotoxy(3,1+y);textcolor(YELLOW);cprintf("º");gotoxy(79,1+y);textcolor(YELLOW);cprintf("º"); }gotoxy(3,1);textcolor(YELLOW);cprintf("É");gotoxy(3,21);textcolor(YELLOW);cprintf("È");gotoxy(79,1);textcolor(YELLOW);cprintf("»");gotoxy(79,21);textcolor(YELLOW);cprintf("¼");for(a=1;a<=49;a++) { gotoxy(15+a,4);textcolor(CYAN);cprintf("ß");gotoxy(15+a,17);textcolor(CYAN);cprintf("Ü"); }for(b=1;b<=14;b++) { gotoxy(16,3+b);textcolor(CYAN);cprintf("Þ");gotoxy(65,3+b);textcolor(CYAN);cprintf("Ý "); }gotoxy(35,3);textcolor(GREEN);cprintf("W E L C O M E");gotoxy(40,6);textcolor(GREEN);cprintf("T O");gotoxy(30,8);textcolor(GREEN);cprintf("C S 1 2 1 ");gotoxy(40,10);textcolor(GREEN);cprintf("P R O G R A M M I N G");gotoxy(30,12);textcolor(GREEN);cprintf("W O R L D");for(z=1;z<=25;z++){ gotoxy(29+z,16);textcolor(YELLOW);cprintf("ß"); }gotoxy(28,15);textcolor(RED);cprintf("LOADING......");for(int d=1;d<=5;d++) { loop(); } } void box() { clrscr();int a,b,x,y,z; for(x=1;x<=77;x++) {gotoxy(2+x,1);textcolor(YELLOW);cprintf("Í");gotoxy(2+x,21);textcolor(YELLOW);cprintf("Í"); }for(y=1;y<=20;y++){ gotoxy(3,1+y);textcolor(YELLOW);cprintf("º");gotoxy(79,1+y);textcolor(YELLOW);cprintf("º"); }gotoxy(3,1);textcolor(CYAN);cprintf("É");gotoxy(3,21);textcolor(CYAN);cprintf("È");gotoxy(79,1);textcolor(CYAN);cprintf("»");gotoxy(79,21);textcolor(CYAN);cprintf("¼");for(a=1;a<=49;a++) { gotoxy(15+a,4);textcolor(CYAN);cprintf("ß");gotoxy(15+a,17);textcolor(CYAN);cprintf("Ü"); } for(b=1;b<=14;b++) {gotoxy(16,3+b);textcolor(CYAN);cprintf("Þ"); gotoxy(65,3+b);textcolor(CYAN);cprintf("Ý "); } }

Output:
Exer7
#include

#include
int salary,years,bonus;

void main(){

clrscr();

printf("Enter salary:\n");

scanf("%d",&salary);

printf("Enter years of service:\n");

scanf("%d",&years);bonus=0;if (years==1){bonus=salary*0.10;printf("Bonus:%d",bonus);}

else if((years<=5)&&(years>=2)){bonus=salary*0.20;printf("Bonus:%d",bonus);}

else if((years<=10&&(years>=6))){bonus=salary*0.50;printf("Bonus:%d",bonus);}

else if((years<=11)){bonus=salary*0.75;printf("Bonus:%d",bonus);}

getch();

}

Output:
Exer6

#include
#include float grade, average, items, sum;
void main(){
clrscr();
average=0;sum=0;do{
printf("Enter grade (-1 to exit): ");
scanf("%f", &grade);
if((grade!=-1)&&(grade<=100)){items++;sum=sum+grade;}} while(grade!=-1); average=sum/items;printf("Class Average: %.2f\n", average); if((average>=95)&&(average<=100)){ printf("Rating: A");} else if((average>=90)&&(average<=94)){printf("Rating: B");} else if((average>=85)&&(average<=89)){printf("Rating: C");} else if((average>=80)&&(average<=84)){printf("Rating: D");} else if((average>=75)&&(average<=79)){printf("Rating: E");} else if(average<=74){printf("Rating: FAILED");} getch(); }

Output:
Exer5

#include

#include
void main(){

int a, b, c;

int choice;
clrscr();

printf("\n Enter a number: ");

scanf("%d", &a);
printf("\n\t\t[A] - Pattern 1\n\n"); printf("\t\t[B] - Pattern 2\n\n"); printf("\t\t[C] - Pattern 3\n\n"); printf("\t\t[D] - Pattern 4\n\n");
printf("Select your choice: ");

scanf("%s",&choice);
switch (choice){

case 'A':

printf("\n "); for(b=1; b<=a; b++) { for(c=1; c<=b; c++) printf("*"); printf("\n "); }

break;
case 'B':

printf("\n "); for(c=a; c>=1; c--) { for(b=1; b<=c; b++) printf("*"); printf("\n "); }

break;
case 'C':

printf("\n "); for(b=1; b<=a; b++) { for(c=1; c<=(a-b); c++) printf(" "); for(c=1; c<=b; c++) printf("*"); printf("\n "); }

break;
case 'D':

printf("\n "); for(int b=a-1; b>=0; b--) { for(int c=b; c }
getch();

}

Ouput:
Exer4

#include

#include

void main(){

clrscr();

int day;

gotoxy(30,5);textcolor(YELLOW+BLINK);cprintf("._. W e L c O m e ._.");

gotoxy(15,8);textcolor(GREEN);cprintf("Enter a number:");

scanf("%d",&day);

switch(day){

case 1:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Sunday");

break;

case 2:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Monday");

break;

case 3:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Tuesday");

break;

case 4:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Wednesday");

break;

case 5:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Thursday");

break;

case 6:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Friday");

break;

case 7:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Saturday");

break;

default:

gotoxy(20,10);textcolor(LIGHTRED);cprintf("Oops! Sorry! That day is not available!");}

getch();

}

Output:
Exer3

#include

#include

float num1,num2,sum=0,diff=0,pro=0,quo=0;

void main(){

clrscr();

gotoxy(25,4);textcolor(YELLOW);cprintf("Basic Operations\n\n");

gotoxy(12,7);textcolor(GREEN);cprintf("Enter 1st number:");

scanf("%f", &num1);

gotoxy(12,8);textcolor(GREEN);cprintf("Enter 2nd number:");

scanf("%f", &num2);sum=num1+num2;

gotoxy(15,11);textcolor(MAGENTA);cprintf("Sum of %.2f and %.2f is %.2f",num1,num2,sum);

diff=num1-num2;gotoxy(15,13);textcolor(MAGENTA);

cprintf("Difference of %.2f and %.2f is %.2f",num1,num2,diff);

pro=num1*num2;

gotoxy(15,15);textcolor(MAGENTA);cprintf("Product of %.2f and %.2f is %.2f",num1,num2,pro);quo=num1/num2;gotoxy(15,17);textcolor(MAGENTA);

cprintf("Quotient of %.2f and %.2f is %.2f",num1,num2,quo);

getch();

}

Output:

Exer2

#include

#include
void main(){

clrscr();

char name[22],age[2];

gotoxy(33,3);

printf("MY AUTOBIOGRAPHY\n");

gotoxy(8,5);

printf("I am Yvonne B.Barbarono, 17 yrs. old, single, taking up BSIT in\n University of Mindanao.");

printf(" I live in #133 Sapphire St., Do¤a Luisa, Matina, Davao City. I was\n born on April,11 1991.I am simple person,");

printf(" silent person and understanding\n person. I have only 1 brother. My father's name is");

printf("Gerry B.Barbarono\n and my mother's name is Celia B.Barbarono. My father's job is a farmer\n");

printf(" and my mother is a housewife. I love to dance and to sing.\n");

printf(" I want to finish my study, want to be a succesful in life in the future.");

getch();

}