Compilare: user.cpp: In function ‘int main()’: user.cpp:78: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:81: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:82: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:85: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int bs2(int)’: user.cpp:74: warning: control reaches end of non-void function user.cpp: In function ‘int bs1(int)’: user.cpp:51: warning: control reaches end of non-void function user.cpp: In function ‘int bs0(int)’: user.cpp:28: warning: control reaches end of non-void function user.cpp: In function ‘int main()’: user.cpp:79: warning: ‘sol’ may be used uninitialized in this function