First Year Basic C Program Part 3

81. Program to accept two strings and compare those two strings

int strcomp (char *pt1, char *pt2);

void read-string(char*pt);

main( )

{

char line [80],line2[80];

clrscr( );

printf(“enter first string;”); read-string (line1); printf(“enter second string”); read-string(line2);

if(strcomp (line1,line2)>0)

printf(“second string biggest”);

else

if(strcomp (line1,line2)>0) printf(“ first string biggest;”); else

printf(“both the strins are equal”);

getch( );

}

void read-string(char*pt)

{

for(;(*pt=getchar( ))!=’\n’;pt++);

*pt=’\0’;

}

int strcomp (char *pt1, char *pt2)

{ for(;*pt1!=’\0’;pt1++;pt2++) if(*pt1!=*pt2)

break;

return *pt1-*pt2;

}

82. Program to accept a string using pointers and functions.

main( )

{

int ch[20];

clrscr ( );

printf(“enter a string”); read_array(ch); printf(“%s”,ch);

getch( );

}

void read_string (char*pt)

{

for(;(*pt=getchar( ))!=’/n’;pt++);

*pt=’\0’;

}

83.Program to read a string and print the first two characters of each word in the string.

main( )

{

char s[100]; int i,l; clrscr( );

printf(“enter a string”);

gets(s);l=strlen(s);

for(i=0;i<l;i++)

{

if(s[i]!=’ ‘ && s[i]=’ ‘)

{

printf(“%c %c”,s[i],s[i+1])

i=i+2; while(s[i]!=’ ‘) i++;

}

}

getch( );

}

84.Program to accept two numbers and print the sum of given two numbers by using pointers

main( )

{

int a, b,c; clrscr( ); a=10; b=20;

c=*(&a)+*(&b);

printf(“%d”,c);

getch( );

}

85.Program to accept a string and print reverse of the given string by using functions.

int getline (char str[]);

void printline (char str[],int i);

main( )

{

char str[80];

int 1;

clrscr( );

1=getline(str ); printline(str,1); printline(str,1);

getch ( );

}

int getline(char str[])

{

int 1;

printf(“enter a string;”); for(i=0;i<80&&((str[i]=getchar())!=’\n’);i++); if(str[i]=’\0’;

return i;

}

void printline(char str[],int 1)

{

int j; for(j=1;j<=0;j--) printf(“%c”,str[j]);

printf(‘is the reverse string”);

}

86. Program to accept two 3 dimensional array and store subtraction of those two arrays into third array.

main( )

{

int a[3][3],b[3][3],c[3][3],i,j;

clrscr( ); for(i=0;i<3;i++) for(j=0;j<3;j++)

{

printf(“enter two values for a[%d][%d] & b[%d][%d]:”,i,j,i,j);

scanf(“%d%d”,&a[i][j],&b[i][j]);

}

for(i=0;i<3;i++)

{

for(j=0;j<3;j++)

{

c[i][j]=a[i][j]-b[i][j];

printf(“%d”,,c[i][j]);

}

printf(“\n”);

}

getch( );

87.Program to accept a single dimensional array and print them by using pointers

main( )

{

int a[5],*b,i; clrscr( ); b=&a[0];

for(i=0;i<=4;i++)

{

printf(“enter the a value for a[%d]”,i)

scanf(“%d”,b);

b++;

} b=&a[0]; for(i=0;i<=4;i++)

{

printf(“\n%d”,*b);

b++;

}

getch( );

}

88.Program to accept two strings and biggest among them

int getline(char line[],int lim);

main( )

{

char str1[80],str2[80];

int len1,len2;

clrscr( );

printf(“enter first string”); len1=getline(str1,80); printf(“enter second string”); len2=getline(str1,80);

if(len1 >len2)

printf(“first string bigger than second string”);

else if(len1

printf(“second string bigger than first string”);

else

printf(“both strings are equal”);

getch( );

}

int getline(char line[],int lim)

{

int i;

for(Ii0;i && ((line[i]=getchar( ))!=’\n’);i++)

if(line[i]==’\n’) line[i]=’\0’; return i;

}

89.Program to print 4 dimensional matrix with constant number.

main( )

{

int a[4][4],i,j,c;

clrscr( );

printf(“enter constant number”); scanf(“%d”,&c); for(i=0;i<4;i++)

{ for(j=0;j<4;j++) a[i][j]=c; for(i=0;i<4;i++)

{

for(j=0;j<4;j++) printf(“%d”,a[i][j]); printf(“\n”);

}

getch( );

}

90.Program to accept a string and print each word in reverse

main( )

{

char name[80];

int i,j,start=0,end,len;

clrscr( );

printf(“enter a string”);

scanf(“%s”,name);

for(i=0;i<80 &&((name[i]=getchar( ) )!=’\n’);i++);

len=i;

for(i=0;ien;i++)

if(name[i]==’ ‘|| name[i]==’\n’)

{

end=i;

while((end--)>=start)

{

printf(“%c”,name[end]);

}

start=i+1;

}

getch( );

}

91. Program to accept elements into single dimensional array and print the array in ascending order by using three different arrays.

void read_array(int x[]); void sort_array(int y[]); void print_array(int z[]); main()

{

int a[10]; clrscr( ); read_array(a); sort_array(a);

print_array(a);

getch( );

}

void read_array(int x[])

{

int i;

for(i=0;i<10;i++)

{

printf(“enter value for a[%d]”,i);

scanf(“%d”,&x[i]);

}

}

void sort_array(int y[])

{

int i,j,k; for(i=0;i<9;i++) for(j=i+1;j<=9;j++) if(y[i]>y[j])

{ k=y[i]; y[i]= y[j]; y[j]=k;

}

}

void print_array(int z[])

{

int i; for(i=0;i<10;i++) printf(“%d\n”,z[i]);

}

92.Program to accept data and store the given data into file print the data.

main( )

{

FILE *fp; char c; fp=fopen(“data.dat”,”w”); clrscr();

printf(“enter text”);

while(1)

{

c=getchar( ); if(c==eof( )) break; putc(c);

}

fclose(fp); fp=fopen(“data.dat”,”r”); while(1)

{

c=getc(fp);

if(c==eof( ))

break;

putchar(c);

}

getch( );

fclose(fp);

}

93. Program to accept data in lower case and store the given data into file into upper case and print the data.

main( )

{

FILE *fp; Char c; fp=fopen(“data2.dat”,”w”); clrscr( );

printf(“enter text”);

while((c=getchar( ))!=eof( ))

{

putc(toupper(c),fp)

} fclose(fp); fp=fopen(“data2.dat”,”r”); while(1)

{

c=getc(fp); if(c==eof( )) break; putchar(c);

}

getch( );

fclose(fp);

}

94. Program to copy contents of one file into another.

main( )

{

FILE * fp1,*fp2; char ch; fp1=fopen(“text1”,”w”); printf(“enter the text”); while((ch=getchar()!=EOF); putc(ch,fp1);

fclose(fp1); fp1=fopen(“text1”,”r”); fp2=fopen(“text2”,”w”); while((ch=getc(fp1))!=EOF) putc(ch,fp2);

fcolse(fp1); fcolse(fp2); getch( );

}

95. Program to create a file of numbers and copy odd number into second file and even number into third file

main( )

{

FILE *fp1,*fp2,*fp3; int i; fp1=open(“data1”,w”); printf(“enter the number”); scanf(“%d”,&i); while(i!=eof)

{ putw(i,fp1); scanf(“%d”,&i);

}

fcolse(fp1); fp1=fopen(“data1”,”r”); fp2=fopen(“data2”,”w”); fp3=fopen(“data3”,”w”); while((i=getc(fp1))!=eof) if(i%2==0)

putc(i,fp3);

else putw(i,fp2); fcolse(fp1); fcolse(fp2); fcolse(fp3); getch( );

}

96. Program to accept a string in lower case and print first character of each word in upper case.

main( )

{

char str1[80]; int length,i; clrscr( );

printf(“enter a string; “);

length=getline(str1,80);

for(i=0;ingth;i++)

{

str1[0]-=32; if(str1[i]= =’ ‘) str1[i+1]-=32; printf(“%c”.str1[i]);

}

getch();

}

int getline(char line [], int lim)

{

int i;

for(i=0;im && ((line[i]=getchar( ))!=’\n’);i++);

if(line[i]= =’\n’) line[i]=’\0’; return i;

}

97. Program to accept two numbers and interchange two values using functions.

void swap (int a, int b);

main( )

{

int a,b;

clrscr( );

printf(“enter value for a;”); scanf(“%d”,&a); printf(“enter value for b;”); scanf(“%d”,&b);

swap(a,b);

getch( );

}

void swap(int a,int b)

}

int c; c=a; a=b; b=c;

printf(“\na=%d”,a);

printf(“\nb=%d”,b);

}

98. Program for example of static variable.

static int i=1; main( )

{

int j;

clrscr( );

for (j=1;j<=5;j++);

fun( );

getch( );

}

fun( )

{ printf(“\n%d”,i); i=i+1;

}

99.Program to accept a string and print by trailing spaces.

main( )

{

char n,n1;

clrscr ( );

printf(“enter a string;”); while((n=getchar( )!=’\n’) if(n>=’a’ && n<=’z’) putchar(n);

else

if(n>=’a’ && n<=’z’)

putchar(n);

getch( );

}

100. Program to print anti diagonal.

main( )

{

int a[4][4],i,j,c;

clrscr( );

printf(“enter which number you want;”);

scanf(“%d”,&c); for(i=0;i<4;i++) for(j=0;j<4;j++) if(i+j= =3) a[i]]j]=c;

else a[i][j]=0 for(i=0;i<4;i++)

{ for(j=0;j<4;j++) printf(“%d”,a[i][j]); printf(“\n”);

}

getch( );

}