Compilare: user.cpp: In function ‘int main()’: user.cpp:12:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&n); ^ user.cpp:22:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&cost[i]); ^ user.cpp:56:40: warning: ‘col’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(l+dl[i]>0&&l+dl[i]<niv&&c+dc[i]>0&&c+dc[i]<niv&&min>d[niv-1][l+dl[i]][c+dc[i]]){ ^ user.cpp:56:16: warning: ‘lin’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(l+dl[i]>0&&l+dl[i]<niv&&c+dc[i]>0&&c+dc[i]<niv&&min>d[niv-1][l+dl[i]][c+dc[i]]){ ^