C String using pointers

C Program to read, print name and other details of 50 students

 #include

#include

#dfine Size 50

struct student

{

char name[30];

int rollno;

int sub[3];

};

void main()

{

int i,j,max,count,total,n,a[Size],ni;

struct student st[Size];

clrscr();

printf("Enter how many students: ");

scanf("%d",&n);

for(i=0;i

{

printf("\n Enter name and roll number for student %d"i);

scanf("%s",st[i].name);

scanf("%d",&st[i].rollno);

}

}

for(i=0;i

{

total=0;

for(j=0;j<3 j="" span="">

{

total=total+st[i].sub[j];

}

printf("\n Total marks obtained by student %s are %d\n”, sti].name,total);

a[i].total;

}

for(j=0;j<3 j="" span="">

{

max=0;

for(i=0;i

{

if(max

{

max=st[i].sub[j];

ni=i;

}

}

printf("\n Student %s got maximum marks = %d in subject :%d",st[ni].name,max,j);

}

max=0;

for(i=0;i

{

if(max

{

max=a[i];

ni=I;

}

}

printf("\n%s Obtained the total highest marks. ",st[ni].name);

getch();

}

Output

Enter how many students: 2

Enter name and roll number for student 0: Pritesh 1

Enter name and roll number for student 1: Suraj 2

Enter marks of student 0 for subjects 0: 90

Enter marks of student 0 for subjects 1: 89

Enter marks of student 0 for subjects 2: 78

Enter marks of student 0 for subjects 0: 67

Enter marks of student 0 for subjects 1: 88

Enter marks of student 0 for subjects 2: 99

Total marks obtained by student pritesh are 257

Total marks obtained by student suraj are 254

Student pritesh got maximum marks = 90 in subject :0

Student pritesh got maximum marks = 89 in subject :1

Student pritesh got maximum marks = 99 in subject :2

Pritesh obtained the total highest marks

Calculate Size of Structure in C Programming

#include

#include

struct stud

{

int roll;

char name[10];

int marks;

};

int main()

{

int size;

struct stud s;

size=sizeof(s);

printf("\n Size of structure :%d",size);

return(0);

}

 Length of the String using Pointer

#include

#include

int string_ln(char*);

void main()

{

char str[20];

int length;

clrscr();

printf("\n Enter any string :”);

gets(str);

lengh=string_ln(str);

printf("The length of the given string %s is : %d",str,length);

getch();

}

int string_n(char*p)

{

int count=0;

while(*p!=’\p’)

{

count++;

p++;

}

return count;

}

Output

          Enter the string : Pritesh

Length of the given string pritesh is :7