Compilare: main.c: In function 'input': main.c:15:6: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen(FIN,"r",stdin); ^~~~~~~~~~~~~~~~~~~~~~ main.c:16:6: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^~~~~~~~~~~~~~~ main.c:18:10: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &V[i]); ^~~~~~~~~~~~~~~~~~ main.c: In function 'dynamic_programming': main.c:24:6: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen(FOUT,"w",stdout); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:61:23: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized] if(V[i] > V[pos] && L[i] == max - 1) { ~^~~~~