Compilare: user.cpp: In function ‘int main()’: user.cpp:119: warning: suggest parentheses around ‘&&’ within ‘||’ user.cpp:147: warning: suggest parentheses around ‘&&’ within ‘||’ user.cpp:152: warning: suggest parentheses around ‘&&’ within ‘||’ user.cpp:178: warning: suggest parentheses around ‘&&’ within ‘||’ user.cpp:72: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:73: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:76: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:80: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result