1. Write a program to process 10 collections of daily high temperatures. Your program should count and print: - the number of hot days (85 or higher),
- the number of pleasant days (60-84), and
- the number of cold days (less than 60).
It should also display the category of each temperature. At the end of the run, display the average
temperature.
Without array
#include<stdio.h>
#define SIZE 5
int main(void)
{
int hot=0, pleasant=0, cold=0;
int sum=0, i, temp;
double average;
for(i=0; i<SIZE; i++)
{
printf("Enter temperature %d > ",i+1);
scanf("%d",&temp);
sum +=temp;
if(temp >= 85)
{
printf("%d, is a hot day\n",temp);
++hot;
}
else if(temp >= 60 && temp <= 84)
{
printf("%d, is a pleasant day\n",temp);
++pleasant;
}
else
{
printf("%d, is a cold day\n",temp);
++cold;
}
}
average = (double) sum/SIZE;
printf("The collection of hot days is %d\n",hot);
printf("The collection of pleasant days is %d\n",pleasant);
printf("The collection of cold days is %d\n",cold);
printf("The average temperature is %.2f\n",average);
return(0);
}
Using Array (the same output)
#include<stdio.h>
#define SIZE 5
int main(void)
{
int hot=0, pleasant=0, cold=0;
int sum=0, i, temp[SIZE];
double average;
for(i=0; i<SIZE; i++)
{
printf("Enter temperature %d > ",i+1);
scanf("%d",&temp[i]);
sum +=temp[i];
if(temp[i] >= 85)
{
printf("%d, is a hot day\n",temp[i]);
++hot;
}
else if(temp[i] >= 60 && temp[i] <= 84)
{
printf("%d, is a pleasant day\n",temp[i]);
++pleasant;
}
else
{
printf("%d, is a cold day\n",temp[i]);
++cold;
}
}
average = (double)sum/SIZE;
printf("The collection of hot days is %d\n",hot);
printf("The collection of pleasant days is %d\n",pleasant);
printf("The collection of cold days is %d\n",cold);
printf("The average temperature is %.2f\n",average);
return(0);
}
temp[0] temp[1] temp[2] temp[3] temp[4]
55
80
87
40
70
2. Write a method/function CalPower(BaseNumber, exponent) that calculates and returns the value of BaseNumberexponent. For example, CalPower(3,4)=3*3*3*3. The method/function should accept a data of type int and return a value of type int. You should not use any method/function from the class Math #include<stdio.h>
int CalPower(int BaseNumber, int exponent);
int main(void)
{
int x, y, total;
printf("Enter the base number > ");
scanf("%d",&x);
printf("Enter the exponent number > ");
scanf("%d",&y);
total = CalPower(x,y);
printf("%d exponent %d is %d\n",x,y,total);
return(0);
}
int CalPower(int BaseNumber, int exponent)
{
int i, result =1;
for(i=0; i<exponent; i++)
result = result *BaseNumber;
return(result);
}
3. Write a for loop that sums the even values from LIST_SIZE element array list. W/O function call
#include<stdio.h>
#define SIZE 6
#include<stdio.h>
#define SIZE 6
int main(void)
{
int list[SIZE],i,sum=0;
for(i=0; i<SIZE; i++)
{
printf("Enter value %d ",i+1);
scanf("%d",&list[i]);
}
for(i=0;i<SIZE;i++)
if(list[i]%2==0)
sum += list[i];
printf("The sum of the even numbers
= %d\n",sum);
Array Arguments
#include<stdio.h>
#define SIZE 6
void fun(int list[]);
int fun(int *list);
int main(void)
{
int x[SIZE],i;
int main(void)
{
int x[SIZE], i , total;
for(i=0; i<SIZE; i++)
{
printf("Enter value %d ",i+1);
scanf("%d",&x[i]);
}
for(i=0; i<SIZE; i++)
{
printf("Enter value %d ",i+1);
scanf("%d",&x[i]);
}
fun(x);
}
total = fun(x);
printf("The sum of the even numbers =
%d\n",total);
return (0);
}
void fun(int list[])
{
int i, sum = 0;
int fun(int *list)
{
int i, sum = 0;
for(i=0;i<SIZE;i++)
if(list[i]%2==0)
sum += list[i];
for(i=0;i<SIZE;i++)
if((list[i]%2)==0) //if(*(list+i)%2)==0)
sum += list[i]; //sum += *(list+i);
return (sum);
}
return (0);
}
printf("The sum of the even numbers
= %d\n",sum);
}
x[0]
x[1]
x[2]
x[3]
x[4]
x[5]
30
12
51
17
45
62
list
4. Write a program that allows the user to enter number of students and their grade, then it search for a particular student grade by entering the number of any student and display either the grade of the student or the student no found. #include<stdio.h>
#define SIZE 5
int main(void)
{
int ID[SIZE], mark[SIZE],i,key;
for(i=0; i<SIZE; i++)
{
printf("Enter number of student %d > ",i+1);
scanf("%d",&ID[i]);
printf("Enter mark for %d > ",ID[i]);
scanf("%d",&mark[i]);
}
printf("Enter number of student to see his grade ");
scanf("%d",&key);
for(i=0 ; i<SIZE; i++)
if(ID[i] == key)
{
printf("The grade for student %d is %d", key, mark[i]);
break;
}
if(i == SIZE)
printf("This number %d is not found ",key);
return (0);
}
#include<stdio.h>
#define SIZE 5
#define NOT_FOUND -1
int serach(const int no[ ], int target, int n);
int main(void)
{
int ID[SIZE], mark[SIZE], i, key, index;
for(i=0; i<SIZE; i++)
{
printf("Enter number of student %d > ", i+1);
scanf("%d",&ID[i]);
printf("Enter mark for %d > ",ID[i]);
scanf("%d",&mark[i]);
}
printf("Enter number of student to see his grade ");
scanf("%d",&key);
index = serach(ID, key, SIZE);
if(index != -1)
printf("The grade for student %d is %d\n", key, mark[index]);
else
printf("This number %d is not found\n ",key);
return(0);
}
int serach(const int no[ ],int target,int n)
{
int i, found = 0, where;
i=0;
while(!found && i < n)
if(no[i] == target)
found = 1;
else
++i;
if(found)
where=i;
else
where = NOT_FOUND;
return (where);
}