Compilare: main.cpp: In function 'int main()': main.cpp:14:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("subsiruri.in", "r", stdin); ^ main.cpp:15:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("subsiruri.out", "w", stdout); ^ main.cpp:20:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &n); ^ main.cpp:22:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &v[i]); ^ main.cpp:42:30: warning: 'napmax' may be used uninitialized in this function [-Wmaybe-uninitialized] napmax = (napmax + nap[i]) % MOD; ~~~~~~~~^~~~~~~~~