Here is the C++ program to print upperhalf and lowerhalf triangle of a square matrix.
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#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) { for (j = 0; j < m; ++j) { if (j < i) cout << a[i][j] << " "; else cout << " "; } cout << "\n"; } return 0; } |
Output
Enter size of the Matrix(min:3,max:5):3
Enter the Matrix row wise:
1 2 3
4 5 6
7 8 9
2 3
6
4
7 8
