Compilare: user.cpp: In function ‘int lastdigit()’: user.cpp:13:24: warning: left operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:13:27: warning: right operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:13:30: warning: right operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:13:33: warning: right operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:13:36: warning: right operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:13:39: warning: right operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:13:42: warning: right operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:13:45: warning: right operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:13:48: warning: right operand of comma operator has no effect [-Wunused-value] 0, 1, 5, 2, 8, 3, 9, 2, 8, 7, ^ user.cpp:14:21: warning: right operand of comma operator has no effect [-Wunused-value] 7, 8, 4, 7, 3, 8, 4, 1, 5, 4, ^ user.cpp:14:24: warning: right operand of comma operator has no effect [-Wunused-value] 7, 8, 4, 7, 3, 8, 4, 1, 5, 4, ^ user.cpp:14:27: warning: right operand of comma operator has no effect [-Wunused-value] 7, 8, 4, 7, 3, 8, 4, 1, 5, 4, ^ user.cpp:14:30: warning: right operand of comma operator has no effect [-Wunused-value] 7, 8, 4, 7, 3, 8, 4, 1, 5, 4, ^ user.cpp:14:33: warning: right operand of comma operator has no effect [-Wunused-value] 7, 8, 4, 7, 3, 8, 4, 1, 5, 4, ^ user.cpp:14:36: warning: right operand of comma operator has no effect [-Wunused-value] 7, 8, 4, 7, 3, 8, 4, 1, 5, 4, ^ user.cpp:14:39: warning: right operand of comma operator has no effect [-Wunused-value] 7, 8, 4, 7, 3, 8, 4, 1, 5, 4, ^ user.cpp:14:42: warning: right operand of comma operator has no effect [-Wunused-value]