Borderou de evaluare (job #438227)

Compilare: user.cpp: In function ‘int calcul(char*)’: user.cpp:13:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:16:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:20:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:11:9: warning: unused variable ‘v’ [-Wunused-variable] user.cpp: In function ‘int main()’: user.cpp:30:9: warning: unused variable ‘n’ [-Wunused-variable] user.cpp: In function ‘int calcul(char*)’: user.cpp:20:9: warning: ‘val2’ may be used uninitialized in this function [-Wuninitialized]