#include <iostream>
#include <vector>
#include <set>
bool isRowUnique(const std::vector<int>& row) {
std::set<int> uniqueNumbers;
for (int num : row) {
// If the number is already in the set, it's a repetition
if (uniqueNumbers.find(num) != uniqueNumbers.end()) {
return false;
}
uniqueNumbers.insert(num);
}
return true;
}
bool areMatrixRowsUnique(const std::vector<std::vector<int>>& matrix) {
for (const auto& row : matrix) {
if (!isRowUnique(row)) {
return false; // If any row has repetitions, return false
}
}
return true; // All rows are unique
}
int main() {
// Matrix
std::vector<std::vector<int>> matrix = {
{1, 2, 3},
{4, 5, 6},
{7, 8, 8} // This row contains a repetition
};
if (areMatrixRowsUnique(matrix)) {
std::cout << "All rows contain unique numbers.\n";
} else {
std::cout << "Some rows contain repeated numbers.\n";
}
}
/*
run:
Some rows contain repeated numbers.
*/
