Algorithm/Matrix-multiplication.cpp at main · vatsalya1102/Algorithm · GitHub

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#include <iostream>

using namespace std;

int main()

{

int a[10][10], b[10][10], mult[10][10], r1, c1, r2, c2, i, j, k;

cout << "Enter rows and columns for first matrix: ";

cin >> r1 >> c1;

cout << "Enter rows and columns for second matrix: ";

cin >> r2 >> c2;

while (c1!=r2)

{

cout << "Error! column of first matrix not equal to row of second.";

cout << "Enter rows and columns for first matrix: ";

cin >> r1 >> c1;

cout << "Enter rows and columns for second matrix: ";

cin >> r2 >> c2;

}

cout << endl << "Enter elements of matrix 1:" << endl;

for(i = 0; i < r1; ++i)

for(j = 0; j < c1; ++j)

{

cout << "Enter element a" << i + 1 << j + 1 << " : ";

cin >> a[i][j];

}

cout << endl << "Enter elements of matrix 2:" << endl;

for(i = 0; i < r2; ++i)

for(j = 0; j < c2; ++j)

{

cout << "Enter element b" << i + 1 << j + 1 << " : ";

cin >> b[i][j];

}

for(i = 0; i < r1; ++i)

for(j = 0; j < c2; ++j)

{

mult[i][j]=0;

}

for(i = 0; i < r1; ++i)

for(j = 0; j < c2; ++j)

for(k = 0; k < c1; ++k)

{

mult[i][j] += a[i][k] * b[k][j];

}

cout << endl << "Output Matrix: " << endl;

for(i = 0; i < r1; ++i)

for(j = 0; j < c2; ++j)

{

cout << " " << mult[i][j];

if(j == c2-1)

cout << endl;

}

return 0;

}

Algorithm/Matrix-multiplication.cpp at main · vatsalya1102/Algorithm · GitHub

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