Borderou de evaluare (job #569968)

Compilare: user.cpp: In function ‘int main()’: user.cpp:23:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:31:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:41:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:44:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:45:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:56:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:78:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:90:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:93:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:111:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:114:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:116:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:122:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]