C Programs

c_programs/c_programs/access array elements.cpp

@@ -0,0 +1,17 @@
+#include<stdio.h>
+int main()
+{
+	int a[5],i;
+	for(i=0;i<5;i++)
+	{
+		printf("\n Enter the element=");
+		scanf("%d",&a[i]);
+
+	}
+	  printf("Array elements are \n");
+	   for(i=0;i<5;i++)
+	{
+		printf("%d\n",a[i]);
+	}
+
+}

c_programs/c_programs/add to integers.cpp

@@ -0,0 +1,11 @@
+#include<stdio.h>
+int main()
+{
+	int a,b,sum;
+	printf("Enter two numbers");
+	scanf("%d%d",&a,&b);
+	sum=a+b;
+    printf("sum of two numbers is %d",sum);
+}
+
+

c_programs/c_programs/add two numbers using functions.cpp

@@ -0,0 +1,17 @@
+#include<stdio.h>
+//program to demonstrate the use of functions in c 
+void add(int x,int y);  //function prototype
+int main()
+{
+ int x,y;	
+	printf("Enter ywo numbers");
+	scanf("%d%d",&x,&y);
+	add(x,y);   //function call
+}
+void add(int a,int b)
+{
+	int c;
+	c=a+b;          //function definition
+	printf("sum is %d",c);
+	return c;
+}

c_programs/c_programs/addition and subtraction of a 2-D matrix.cpp

@@ -0,0 +1,80 @@
+#include<stdio.h>
+int main()
+{
+	int m,n,a[10][10],b[10][10],c[10][10],d[10][10],i,j;
+	printf("Enter number of rows m = ");
+	scanf("%d",&m);
+	printf("Enter number of columns n ");
+	scanf("%d",&n);
+	printf("Marix elements:");
+	for(i=0;i<m;i++)
+	{
+		for(j=0;j<n;j++)
+		{
+			printf("Enter elements[%d][%d] :",i,j);
+			scanf(" %d ",&a[i][j]);
+		}
+	}
+	printf("Matix1:\n");
+	for(i=0;i<n;i++)
+	{
+		for(j=0;j<n;j++)
+		{
+			printf("\n %d ",a[i][j]);
+		}
+		printf("\n");
+	}
+	printf("Matrix 2:\n");
+	for(i=0;i<m;i++)
+	{
+		for(j=0;j<n;j++)
+		{
+			printf("Enter elements[%d][%d]:",i,j);
+			scanf(" %d ",&b[i][j]);
+		}
+
+    }
+    for(i=0;i<m;i++)
+    {
+    	for(j=0;j<n;j++)
+    	{
+    		printf(" %d ",b[i][j]);
+		}
+		printf("\n");
+	}
+
+	/* LOGIC FOR ADDITION */
+	for(i=0;i<m;i++)
+	{
+		for(j=0;j<n;j++)
+		{
+			c[i][j]=a[i][j]+b[i][j];
+		}
+	}
+	for(i=0;i<m;i++)
+	{
+		for(j=0;j<n;j++)
+		{
+			d[i][j]=a[i][j]-b[i][j];
+		}
+	}
+	printf("Addition of matrix is : ");
+	for(i=0;i<m;i++)
+	{
+		for(j=0;j<n;j++)
+		{
+			printf(" %d ",c[i][j]);
+		}
+		printf("\n");
+	}
+	printf("Subtraction of matrix is : ");
+	for(i=0;i<m;i++)
+	{
+		for(j=0;j<n;j++)
+		{
+			printf(" %d ",d[i][j]);
+		}
+		printf("\n");
+	}
+}
+

c_programs/c_programs/addition of two matrices.cpp

@@ -0,0 +1,37 @@
+#include<stdio.h>
+int main()
+{
+	int m1[10][10],m2[10][10],m3[10][10],m,n,i,j,addition;
+	printf("Enter number of rows = ");
+	scanf("%d",&m);
+	printf("Enter number of columns = ");
+	scanf("%d",&n);
+    printf("Enter elements of first matrix= \n");	
+	 for(i=0;i<m;i++)
+     {
+     	for(j=0;j<n;j++)
+     	{
+     	  scanf("%d ",&m1[i][j]);	
+		 }
+	}
+    printf("Enter elements of second matrix = \n");
+    for(i=0;i<m;i++)
+    {
+    	for(j=0;j<n;j++)
+    	{
+    		scanf("%d",&m2[i][j]);
+		}
+	}
+	printf("Addition of matrices is = ");
+	for(i=0;i<m;i++)
+	{
+		for(j=0;j<n;j++)
+		{
+			m3[i][j]=m1[i][j]+m2[i][j];
+			printf("%d\t",m3[i][j]);
+		}
+		printf("\n");
+	}
+	printf("ADDITION OF MATRICES IS ",addition);
+	 }
+

c_programs/c_programs/age of person in years,week,days,hours.cpp

@@ -0,0 +1,18 @@
+#include<stdio.h>
+int main()
+{
+	/* CALCULATE AGE OF A PERSON */ 
+	int cy,by,week,age,hrs;
+	printf("Enter the birth year = ");
+	scanf("%d",&by);
+	printf("Enter the current year = ");
+	scanf("%d",&cy);
+	age=cy-by;
+	printf("Age of person is %d",age);
+	week=(age*365)/7;
+	printf("\n Age in week is = %d \n",week);
+	hrs=week*7*24;
+	printf(" \nAge in hours is = %d \n",hrs);
+
+
+}

c_programs/c_programs/all prime numbers between 1 to n.cpp

@@ -0,0 +1,21 @@
+#include<stdio.h>
+int main()
+{
+	int num,i,dividend,n;
+	printf("enter maximum range");
+	scanf("%d",&n);
+	for(num=1;num<=n;num++)
+	{
+		dividend=0;
+		for(i=2;i>=num/2;i++)
+		{
+			if(num%i==0)
+			{
+			  dividend++;
+				break;
+			}
+		}
+		if (dividend==0 && num!=1)
+		  printf("%d\t",num);
+	}
+}

c_programs/c_programs/alphabet pattern 1.cpp

@@ -0,0 +1,16 @@
+#include<stdio.h>
+int main()
+{
+	int i,j;
+	char ch='A';
+	 for(i=1;i<=5;i++)
+	 {
+	 	for(j=1;j<=i;j++)
+	 	{
+	 		printf("\n%c",ch);
+	 		ch++;
+		 }
+		 ch='A';
+
+	  printf("\n");
+}

c_programs/c_programs/alphabet pattern 2.cpp

@@ -0,0 +1,16 @@
+#include<stdio.h>
+int main()
+{
+	int i,j;
+	char ch='A';
+	for(i=1;i<=5;i++)
+	{
+		for(j=1;j<=i;j++)
+		{
+
+		printf("%c",ch);
+	}
+	   ch++;
+	  printf("\n");
+}
+}

c_programs/c_programs/alphabet pattern 3.cpp

@@ -0,0 +1,15 @@
+#include<stdio.h>
+int main()
+{
+	int i,j;
+	char ch='A';
+	for(i=1;i<=5;i++)
+	{
+		for(j=1;j<=i;j++)
+		{
+			printf("%c",ch);
+			ch++;
+		}
+		printf("\n");
+	}
+}

c_programs/c_programs/alphabet pattern in v shape.cpp

@@ -0,0 +1,22 @@
+#include<stdio.h>
+int main()
+{
+	int i,j;
+	for(i=1;i<=5;i++)
+	{
+		for(j=1;j<=9;j++)
+		{
+			if(j<=i || j>=10-i)
+			{
+				printf("%c",96+i);
+			}
+			else
+			{
+				printf(" ");
+			}
+
+		}
+		printf("\n");
+	}
+
+}

c_programs/c_programs/alphabet pattern.cpp

@@ -0,0 +1,23 @@
+#include<stdio.h>
+int main()
+{
+	int i,j;
+	char k;
+	for(i=1;i<=3;i++)
+	{
+	  k='A';
+	 for(j=1;j<=3;j++)
+	 {
+
+		if(j<=i)
+		printf("%c",k);
+		k++;
+	}
+		else
+		 printf(" ");
+
+
+	}
+	printf("\n");
+}
+}

c_programs/c_programs/alphabets pattern in inverted U shap.cpp

@@ -0,0 +1,25 @@
+#include<stdio.h>
+int main()
+{
+	int i,j;
+	char ch;
+	for(i=1;i<=4;i++)
+	{
+		  ch='A';
+		for(j=1;j<=7;j++)
+		{
+			if(j<=5-i||j>=3+i)
+			{
+			  printf("%c",ch);
+			  j<4?ch++:ch--;
+		    }
+		     else
+		     {
+		     	printf(" ");
+		          if(j==4)
+		     	ch--;
+			 }
+	    }
+	    printf("\n");
+}
+}

c_programs/c_programs/area of rectangle using functions.cpp

@@ -0,0 +1,20 @@
+#include<stdio.h>
+int area(int l,int b);
+int main()
+{
+	int l,b;
+	printf("Enter the length\n");
+	scanf("%d",&l);
+	printf("Enter the breadth\n");
+	scanf("%d",&b);
+	rectangle=area(l,b);
+	printf("Area of rectangle = %d",rectangle);
+
+}
+ int area(int l,int b)
+{
+	int area;
+	area=l*b;
+	return(area);
+}
+

c_programs/c_programs/area of square using functions.cpp

@@ -0,0 +1,17 @@
+#include<stdio.h>
+ square area ();
+ int main()
+{
+  int a,square;	
+	printf("Enter side of square=");
+	scanf("%d",&a);
+	square=area(a*a);
+	print("\nArea of square =%d",square);
+}
+  area()
+{
+	int a;
+	area=a*a;
+	return();
+}
+