Resuelto 151 en c++: ¿Es matriz identidad?

1 files changed, 28 insertions, 0 deletions

diff --git a/c/151_esMatrizIdentidad.cpp b/c/151_esMatrizIdentidad.cpp
new file mode 100644
index 0000000..ba6dd34
--- /dev/null
+++ b/c/151_esMatrizIdentidad.cpp
@@ -0,0 +1,28 @@
+#include <iostream>
+
+void solveMatrix(int size) {
+	int value;
+	int wrong = 0;
+	for (int row = 0; row < size; row++) {
+		for (int col = 0; col < size; col++) {
+			std::cin >> value;
+			if ( (col == row && value != 1) || (col != row && value != 0) ) {
+				wrong = 1;
+			}
+		}
+	}
+	if (wrong)
+		std::cout << "NO\n";
+	else
+		std::cout << "SI\n";
+}
+
+int main() {
+	int size;
+	std::cin >> size;
+	while (size != 0) {
+		solveMatrix(size);
+		std::cin >> size;
+	}
+	return 0;
+}