Compilare: user.cpp: In function ‘int main()’: user.cpp:8:7: warning: unused variable ‘n’ [-Wunused-variable] int n, sol, i, j, k1, k2, s1, s2, max, ok, smax; ^ user.cpp:10:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^ user.cpp:54:14: warning: iteration 10u invokes undefined behavior [-Waggressive-loop-optimizations] f1[i]=0; ^ user.cpp:53:5: note: containing loop for(i=1; i<=19; i++) ^