Compilare: main.cpp: In function 'int complementare()': main.cpp:72:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=strlen(x)-1; i>=strlen(x)-s; i--) ~^~~~~~~~~~~~~ main.cpp:77:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(ok==1) ^~ main.cpp:80:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if(ok==0) ^~