53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
// pb_z11_33.cpp
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// Горбацевич Андрей
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#include <iostream>
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using namespace std;
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int **read_matrix(size_t nrows, size_t ncols);
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void print_matrix(int **matrix, size_t nrows, size_t ncols);
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void transpose(int **matrix, size_t size);
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int main() {
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size_t size;
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cout << "size >>>";
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cin >> size;
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int **matrix = read_matrix(size, size);
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cout << "Before:" << endl;
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print_matrix(matrix, size, size);
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transpose(matrix, size);
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cout << "After:" << endl;
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print_matrix(matrix, size, size);
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return 0;
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}
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int **read_matrix(size_t nrows, size_t ncols) {
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int **out = new int*[nrows];
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for(size_t i = 0; i < nrows; i++) {
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int *row = new int[ncols];
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for(size_t j = 0; j < ncols; j++) {
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cin >> *(row + j);
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}
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*(out + i) = row;
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}
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return out;
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}
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void print_matrix(int **matrix, size_t nrows, size_t ncols) {
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for(size_t i = 0; i < nrows; i++) {
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for(size_t j = 0; j < ncols; j++) {
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cout << *(*(matrix + i) + j) << " ";
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}
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cout << endl;
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}
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}
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void transpose(int **matrix, size_t size) {
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for(size_t i = 0; i < size; i++) {
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for(size_t j = i; j < size; j++) {
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int ri = *(*(matrix + i) + j);
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int ci = *(*(matrix + j) + i);
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swap(*(*(matrix + i) + j), *(*(matrix + j) + i));
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}
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}
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}
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