Compilare: main.cpp: In function 'int main()': main.cpp:49:26: warning: 'mij' may be used uninitialized in this function [-Wmaybe-uninitialized] 49 | sum+=1LL*(cnt-k)*mij; | ^~~ main.cpp:48:12: warning: 'sum1' may be used uninitialized in this function [-Wmaybe-uninitialized] 48 | sum-=sum1; | ~~~^~~~~~ main.cpp:49:22: warning: 'cnt' may be used uninitialized in this function [-Wmaybe-uninitialized] 49 | sum+=1LL*(cnt-k)*mij; | ~~~~^~~