运行 ID: 33236

Main.cc:4:1: error: expected ‘,’ or ‘;’ before ‘using’
 using namespace std;
 ^~~~~
Main.cc: In function ‘int main()’:
Main.cc:15:14: error: ‘min’ was not declared in this scope
         w[i]=min(w[i],w[i+1]);
              ^~~
Main.cc:15:14: note: suggested alternative:
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from Main.cc:1:
/usr/include/c++/7/bits/stl_algo.h:3456:5: note:   ‘std::min’
     min(initializer_list<_Tp> __l, _Compare __comp)
     ^~~
Main.cc:30:9: error: ‘cin’ was not declared in this scope
         cin>>x>>y;
         ^~~
Main.cc:30:9: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:60:18: note:   ‘std::cin’
   extern istream cin;  /// Linked to standard input
                  ^~~
Main.cc:38:16: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses]
    int mid = l + r >> 1;
              ~~^~~
Main.cc:9:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&q);
     ~~~~~^~~~~~~~~~~~~~
Main.cc:11:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&w[i]);
         ~~~~~^~~~~~~~~~~~