Compilare: user.cpp: In function ‘void dS()’: user.cpp:27: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘void sN()’: user.cpp:73: warning: operation on ‘j1’ may be undefined user.cpp: In function ‘int main()’: user.cpp:94: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:96: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:98: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result