Compilare: main.c: In function 'main': main.c:6:30: warning: unused variable 'p2' [-Wunused-variable] int n, i, j, s, ok=0, c, p2; ^~ main.c:6:21: warning: unused variable 'ok' [-Wunused-variable] int n, i, j, s, ok=0, c, p2; ^~ main.c:7:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^~~~~~~~~~~~~~~~~~~~~ main.c:10:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^~~~~~~~~~~~~~~~~~~~~~~~ main.c:12:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x[i]); ^~~~~~~~~~~~~~~~~~~~~~~~