Borderou de evaluare (job #580440)

Compilare: main.cpp: In function 'int main()': main.cpp:9:21: warning: unused variable 'a' [-Wunused-variable] 9 | long long k,n,i,a,b,c,u,j; | ^ main.cpp:9:23: warning: unused variable 'b' [-Wunused-variable] 9 | long long k,n,i,a,b,c,u,j; | ^ main.cpp:15:13: warning: 'u' may be used uninitialized in this function [-Wmaybe-uninitialized] 15 | c=u*u-(u-1); | ~~^~~