Compilare: user.cpp: In function ‘void Read()’: user.cpp:40:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp: In function ‘void CountLength()’: user.cpp:75:21: warning: ‘result’ may be used uninitialized in this function [-Wmaybe-uninitialized] length = result + 1; ^ user.cpp: In function ‘void Solve()’: user.cpp:75:21: warning: ‘result’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:64:9: note: ‘result’ was declared here int result; ^