Compilare: main.cpp: In function 'int main()': main.cpp:18:17: warning: unused variable 'u' [-Wunused-variable] 18 | int n,k,i,j,u,h,poz1,poz2,cnt,a,z,p,lin,col,poz3,poz4; | ^ main.cpp:18:19: warning: unused variable 'h' [-Wunused-variable] 18 | int n,k,i,j,u,h,poz1,poz2,cnt,a,z,p,lin,col,poz3,poz4; | ^ main.cpp:18:39: warning: unused variable 'p' [-Wunused-variable] 18 | int n,k,i,j,u,h,poz1,poz2,cnt,a,z,p,lin,col,poz3,poz4; | ^ main.cpp:48:35: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized] 48 | else if(nr1==1 && mat[i][j]==1) | ~~~~~~~~^