Borderou de evaluare (job #788769)

Compilare: main.cpp: In function 'int main()': main.cpp:17:23: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 17 | for (int i = 1; i <= N; i++) { | ~~^~~~ main.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 21 | for (int i = 1; i <= N; i++, u = !u) { | ~~^~~~ main.cpp:28:23: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 28 | for (int j = 1; j <= N; j++) { | ~~^~~~