Compilare: main.cpp: In function 'void init()': main.cpp:7:29: warning: comparison of integer expressions of different signedness: 'ull' {aka 'long long unsigned int'} and 'int' [-Wsign-compare] 7 | #define ft(n) for(ull i=1; i<=n; i++) | ^ main.cpp:37:9: note: in expansion of macro 'ft' 37 | ft(n) | ^~ main.cpp: In function 'int main()': main.cpp:7:29: warning: comparison of integer expressions of different signedness: 'ull' {aka 'long long unsigned int'} and 'int' [-Wsign-compare] 7 | #define ft(n) for(ull i=1; i<=n; i++) | ^ main.cpp:99:9: note: in expansion of macro 'ft' 99 | ft(m) | ^~