Compilare: main.cpp: In function 'int main()': main.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 26 | for(int i=1;i<=cnt;i++) | ~^~~~~ main.cpp:29:28: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 29 | for(int j=i+1;j<=cnt;j++) | ~^~~~~ main.cpp:25:13: warning: unused variable 'cate' [-Wunused-variable] 25 | int cate=0; | ^~~~