modified: proglabs/lab5/11.c

modified:   proglabs/lab5/14.c
	new file:   proglabs/lab5/15.c
	new file:   proglabs/lab5/16.c
	new file:   proglabs/lab5/17.c
	new file:   proglabs/lab5/18.c
	new file:   proglabs/lab5/<F5>

proglabs/lab5/15.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+int main() {
+    char c, s[256];
+    int n = 0, st = 0;
+
+    while(st == 0){
+        scanf("%c", &c);
+        st = (c == '\n');
+        s[n] = c * (1 - st);
+        n = n + (1 - st);
+    }
+
+    while(n > 0) {
+        n -= 1;
+        printf("%c", s[n]);
+    }
+    printf("\n");
+    return 0;
+}