Compilare: user.cpp: In function ‘void readFile()’: user.cpp:70:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp:73:9: warning: unused variable ‘lin’ [-Wunused-variable] int lin, col, timp; ^ user.cpp:73:14: warning: unused variable ‘col’ [-Wunused-variable] int lin, col, timp; ^ user.cpp:73:19: warning: unused variable ‘timp’ [-Wunused-variable] int lin, col, timp; ^ user.cpp:65:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d", &n, &m, &k); ^ user.cpp:66:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &start, &fin); ^ user.cpp:76:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d", &l, &c, &r); ^ user.cpp:77:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &t, &d); ^