Adding ex4

diff --git a/aula02/ex4.c b/aula02/ex4.c
new file mode 100644 (file)
index 0000000..ec4ba49
--- /dev/null
+++ b/aula02/ex4.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+float media (int N);
+
+int main() {
+  int N;
+
+  scanf("%d", &N);
+  printf("%f\n", media(N));
+  
+  return 0;
+}
+
+float media (int N) {
+  int i;
+  float sum = 0, val;
+
+  for (i = 0; i < N; i++) {
+    scanf("%f", &val);
+    sum += val;
+  }
+
+  return sum/N;
+}
+