diff --git a/aulas/04-variaveis/a.out b/aulas/04-variaveis/a.out
deleted file mode 100755
index 3822693..0000000
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diff --git a/aulas/04-variaveis/teste.c b/aulas/04-variaveis/teste.c
deleted file mode 100644
index c12f3e0..0000000
--- a/aulas/04-variaveis/teste.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include <stdio.h>
-
-int a = 23;
-
-int b;
-
-void print_b(void) {
-    b = 10;
-    printf("b=%d\n", b);
-}
-
-
-int main(void) {
-    printf("a=%d\n", a);
-    print_b();
-}
-
diff --git a/aulas/04-variaveis/var1 b/aulas/04-variaveis/var1
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diff --git a/aulas/04-variaveis/var2 b/aulas/04-variaveis/var2
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diff --git a/aulas/04-variaveis/var4 b/aulas/04-variaveis/var4
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