Neeraj Mishra

Here is the C++ program to find sum of elements above and below the main diagonal of square matrix. #include<iostream> using namespace std; int main() { int arr[5][5],a=0,b=0,i,j,n; cout<<“Enter size of matrix(max 5):”; cin>>n; cout<<“Enter the matrix:\n”; for(i=0;i<n;++i) for(j=0;j<n;++j) cin>>arr[i][j]; for(i=0;i<n;++i) for(j=0;j<n;++j) if(j>i) a+=arr[i][j]; else if(i>j) b+=arr[i][j]; cout<<“\nSum of elements above the diagonal:”<<a; cout<<“\nSum of …

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Here is the C++ program to insert an element in an array. The array must be in ascending order. For example the array is 1 4 6 7. We have to insert 5. Then the resultant array will be 1 4 5 6 7. The program is given below. C++ Program to Insert an Element …

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Here is the C++ program to print upperhalf and lowerhalf triangle of a square matrix. #include<iostream> using namespace std; int main() { int a[10][10],i,j,m; cout<<“Enter size of the Matrix(min:3,max:5):”; cin>>m; cout<<“\nEnter the Matrix row wise:\n”; for(i=0;i<m;i++) for(j=0;j<m;++j) cin>>a[i][j]; cout<<“\n\n”; for(i=0;i<m;++i) { for(j=0;j<m;++j) { if(i<j) cout<<a[i][j]<<” “; else cout<<” “; } cout<<“\n”; } cout<<“\n\n”; for(i=0;i<m;++i) { …

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Here is the C++ program to find largest and second largest number in a 2d array or matrix. #include<iostream> using namespace std; int main() { int a[5][5],big1=1,big2=0,n,m,i,j; cout<<“Enter no of rows and columns(max 5):”; cin>>m>>n; cout<<“Enter the array:\n”; for(i=0;i<m;i++) for(j=0;j<n;++j) cin>>a[i][j]; for(i=0;i<m;++i) for(j=0;j<n;++j) { if(a[i][j]>big1) big1=a[i][j]; } for(i=0;i<m;++i) for(j=0;j<n;++j) { if(a[i][j]>big2&&a[i][j]<big1) big2=a[i][j]; } cout<<“\nLargest number:”<<big1; …

C++ Program to Find Largest and Second Largest Number in 2D Array Read More »

Here is the C++ program to find the sum of diagonals of a matrix. The matrix should be a square matrix. #include<iostream> using namespace std; int main() { int a[5][5],d1sum=0,d2sum=0,m,i,j; cout<<“Enter size of the square matrix(max 5):”; cin>>m; cout<<“\nEnter the Matrix row wise:\n”; for(i=0;i<m;i++) for(j=0;j<m;++j) cin>>a[i][j]; for(i=0;i<m;++i) for(j=0;j<m;++j) { if(i==j) d1sum+=a[i][j]; if(i+j==(m-1)) d2sum+=a[i][j]; } cout<<“\nSum …

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In this article you will get program for bubble sort in C++. Bubble sort is a sorting technique in which each pair of adjacent elements are compared, if they are in wrong order we swap them. This algorithm is named as bubble sort because, same as like bubbles the smaller or lighter elements comes up …

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