Compilare: user.cpp: In function ‘int main()’: user.cpp:82:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < o[i].size() - 1; j++) { ^ user.cpp:120:42: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘int64_t {aka long long int}’ [-Wformat=] printf("%d %d\n", r + 1, getCost(r + 1)); ^ user.cpp:49:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri.in", "r", stdin); ^ user.cpp:50:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri.out", "w", stdout); ^ user.cpp:52:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &m, &b); ^ user.cpp:57:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d %d", &a, &b, &c, &p, &s); ^ user.cpp: In function ‘int64_t getCost(int)’: user.cpp:33:13: warning: array subscript is below array bounds [-Warray-bounds] bst_wait[v] = 0; ^ user.cpp:34:15: warning: array subscript is below array bounds [-Warray-bounds] bst_nowait[v] = 0; ^