Compilare: user.cpp: In function ‘int main()’: user.cpp:32:27: warning: variable ‘k0’ set but not used [-Wunused-but-set-variable] int j, p, n, v, a, k, k0; ^ user.cpp:41:9: warning: unused variable ‘y0’ [-Wunused-variable] int y0; ^ user.cpp:37:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f0, "%d%d%d", &p, &n, &v); ^ user.cpp:218:27: warning: ‘l2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout <<l1<< ' ' <<l2<< ' ' <<k; ^ user.cpp:218:16: warning: ‘l1’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout <<l1<< ' ' <<l2<< ' ' <<k; ^