Eroare de compilare: main.cpp:19:1: error: 'mt19937' does not name a type mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); ^~~~~~~ main.cpp: In function 'long long int rand_seed()': main.cpp:21:23: error: 'rng' was not declared in this scope long long a = rng(); ^ main.cpp: In function 'int main()': main.cpp:70:13: warning: unused variable 'st' [-Wunused-variable] int n,i,st,dr,k,x,y,t; ^~ main.cpp:70:16: warning: unused variable 'dr' [-Wunused-variable] int n,i,st,dr,k,x,y,t; ^~ main.cpp:68:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("arbint.in","r",stdin); ^ main.cpp:69:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("arbint.out","w",stdout); ^ main.cpp:71:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ main.cpp:72:42: 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",&v[i]); ^ main.cpp:75:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&t,&x,&y); ^ Non zero exit status: 1