Compilare: main.cpp: In function 'bool ok(int)': main.cpp:25:42: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 25 | for (j = i; j <= i + x / 2 && nr <= k; j++) | ~~~^~~~ main.cpp:27:54: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 27 | for (j = i + x / 2 + 1; j <= i + x - 1 && nr <= k; j++) | ~~~^~~~ main.cpp:29:16: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 29 | if (nr <= k) | ~~~^~~~