Compilare: main.cpp: In function 'int main()': main.cpp:39:22: warning: unused variable 'l' [-Wunused-variable] int i , j , x , y , l , xs , ys ; ^ main.cpp:39:26: warning: unused variable 'xs' [-Wunused-variable] int i , j , x , y , l , xs , ys ; ^~ main.cpp:39:31: warning: unused variable 'ys' [-Wunused-variable] int i , j , x , y , l , xs , ys ; ^~ main.cpp:41:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&lungime); ^ main.cpp:48:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&a[i][j]); ^