Changes to be committed:

modified:   proglabs/lab5/1.c
	new file:   proglabs/lab5/10.c
	new file:   proglabs/lab5/11.c
	new file:   proglabs/lab5/12.c
	new file:   proglabs/lab5/13.c
	new file:   proglabs/lab5/14.c
	modified:   proglabs/lab5/2.c
	new file:   proglabs/lab5/3-1.c
	new file:   proglabs/lab5/3-2.c
	deleted:    proglabs/lab5/3.c
	new file:   proglabs/lab5/4.c
	new file:   proglabs/lab5/5.c
	new file:   proglabs/lab5/6.c
	new file:   proglabs/lab5/7.c
	new file:   proglabs/lab5/8.c
	new file:   proglabs/lab5/9.c
	new file:   proglabs/lab5/tmp.out

proglabs/lab5/12.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+int main() {
+    int s, n;
+    double s1, s2;
+
+    scanf("%d", &n);
+    while(n > 0) {
+        s1 = s2 = 0.0;
+        s = 1;
+        for(int i = 1; i <= n; i++) {
+            s1 += 1.0 / i;
+            s2 += s * (1.0 / i);
+            s *= -1;
+        }
+    printf("summ1 = %lf\nsumm2 = %lf\nNum: ",s1,s2);
+    scanf("%d", &n);
+    }
+}