Compilare: user.cpp: In function ‘int main()’: user.cpp:59:24: warning: unused variable ‘st’ [-Wunused-variable] int i,j,p,vmin,x,y,st,dr,mid,res=0,cnt=0; ^ user.cpp:59:27: warning: unused variable ‘dr’ [-Wunused-variable] int i,j,p,vmin,x,y,st,dr,mid,res=0,cnt=0; ^ user.cpp:59:30: warning: unused variable ‘mid’ [-Wunused-variable] int i,j,p,vmin,x,y,st,dr,mid,res=0,cnt=0; ^ user.cpp:61:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&p); ^ user.cpp:62:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d",&N,&M,&K); ^ user.cpp:65:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[i][j]); ^ user.cpp: In function ‘int Find_min()’: user.cpp:52:12: warning: ‘res’ may be used uninitialized in this function [-Wmaybe-uninitialized] return res; ^