Borderou de evaluare (job #548184)

Compilare: user.cpp: In function ‘int main()’: user.cpp:21:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:29:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:31:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:34:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:37:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:39:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:42:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:44:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:49:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:54:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:59:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:64:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:69:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:74:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:85:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]