1) gets() -- never use it. Read this for explaination of why.

lines 26-27: There is no need for variable x. Just use the parameter variable n.

line 41: >>void putdata(int n); Delete that line because its not necessary to prototype a function before actually writing the code for it. Most programmers will have all function progotypes at the very beginnning of the program, after the #include <blabla> statements.

line 44: same as previous comment about 26-27.

No comments about the rest of your program because I don't use ancient Turbo C++.