Compilare: user.cpp: In function ‘int main()’: user.cpp:41:19: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%d", &N); ^ user.cpp:52:27: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d\n", best[N]); ^ user.cpp:39:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, pos; ^ user.cpp:36:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("heavymetal.in", "r", stdin); ^ user.cpp:37:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("heavymetal.out", "w", stdout); ^ user.cpp:41:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.cpp:42:72: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1; i<=N; i++) scanf("%d %d", &bands[i].left, &bands[i].right); ^ user.cpp: In function ‘int BinSearch(int)’: user.cpp:29:12: warning: ‘Closest’ may be used uninitialized in this function [-Wmaybe-uninitialized] return Closest; ^ user.cpp: In function ‘int main()’: user.cpp:50:40: warning: ‘Closest’ may be used uninitialized in this function [-Wmaybe-uninitialized] best[i] = max(best[i], best[pos] + bands[i].right - bands[i].left); ^