Compilare: user.cpp: In function ‘int main()’: user.cpp:21:39: warning: unused variable ‘l’ [-Wunused-variable] int n,m,i,xr,xj,yr,yj,in,sf,lc,cc,l,c,lf,cf,minim,j; ^ user.cpp:21:41: warning: unused variable ‘c’ [-Wunused-variable] int n,m,i,xr,xj,yr,yj,in,sf,lc,cc,l,c,lf,cf,minim,j; ^ user.cpp:24:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%c",&n,&m,&inutil); ^ user.cpp:29:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&ch); ^ user.cpp:41:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&inutil); ^ user.cpp:71:22: warning: ‘yj’ may be used uninitialized in this function [-Wmaybe-uninitialized] julieta[xj][yj]=1; ^ user.cpp:52:20: warning: ‘yr’ may be used uninitialized in this function [-Wmaybe-uninitialized] romeo[xr][yr]=1; ^ user.cpp:71:22: warning: ‘xj’ may be used uninitialized in this function [-Wmaybe-uninitialized] julieta[xj][yj]=1; ^ user.cpp:52:20: warning: ‘xr’ may be used uninitialized in this function [-Wmaybe-uninitialized] romeo[xr][yr]=1; ^