From 033867165ee1398d5d94f265754534edc2a2a394 Mon Sep 17 00:00:00 2001
From: leo <leo@azuminha.com>
Date: Mon, 6 Mar 2023 01:32:31 -0300
Subject: Mais coisas aleatorias

---
 Random/det.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Random/det.c

(limited to 'Random/det.c')

diff --git a/Random/det.c b/Random/det.c
new file mode 100644
index 0000000..8e3f524
--- /dev/null
+++ b/Random/det.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+void printm(int MATRIZ[][100], int n){
+	for(int i=0; i<n; ++i){
+		for(int j=0; j<n; ++j){
+			printf("%d ", MATRIZ[i][j]);
+		}
+		printf("\n");
+	}
+}
+
+void copy(int MATRIZ[][100], int COPY[][100], int n, int y, int x){
+	int COPY_Y = 0, COPY_X = 0;
+	for(int i = 0; i < n; ++i){
+		if(i != y){
+			COPY_X = 0;
+			for(int j = 0; j < n; ++j){
+				if(j != x){
+					COPY[COPY_Y][COPY_X] = MATRIZ[i][j];
+					COPY_X++;
+				}	
+			}
+			COPY_Y++;
+		}
+	}
+}
+
+int det(int MATRIZ[][100], int n){
+	int d = 0;
+	if(n == 1) return MATRIZ[0][0];
+	int COPY[100][100];
+	int	sinal = -1;
+	for(int i=0; i<n; ++i){
+		sinal *= -1;
+		copy(MATRIZ, COPY, n, 0, i);
+//		printm(COPY, n-1);
+//		printf("\n");
+		d += sinal * MATRIZ[0][i] * det(COPY, n-1);
+	}
+	return d;
+}
+
+int main(){
+	int n;
+	scanf("%d", &n);
+	int MATRIZ[100][100];
+	for(int i=0; i<n; ++i)
+		for(int j=0; j<n; ++j)
+			scanf("%d", &MATRIZ[i][j]);
+	printf("%d\n", det(MATRIZ, n));
+}
-- 
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