修改文件结构。

POP/01/Exercise3-1.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+#include <math.h>
+
+int main() {
+    double a, b, z;
+    printf("input a and b");
+    scanf("%lf, %lf", &a, &b);
+    z = exp(a * a + b * b);
+    printf("z = %f\n", z);
+    return 0;
+}