Borderou de evaluare (job #85363)

Compilare: user.cpp: In function ‘int main()’: user.cpp:19:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:33:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:47:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:61:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:75:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:89:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:103:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:117:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:131:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:145:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:34:24: warning: ‘t’ may be used uninitialized in this function [-Wuninitialized]