tools/defaultdict.cpp

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• Last update: 2020-12-20 13:43:34+09:00

Verified with

• test/aoj/3213.test.cpp

Code

#ifndef call_from_test
#include <bits/stdc++.h>
using namespace std;
#endif
//BEGIN CUT HERE
template<typename Key,typename T>
struct DefaultDict : map<Key, T>{
  using super = map<Key, T>;
  const T val;
  DefaultDict(T val_):val(val_){}
  T& operator[](const Key& key){
    if(!super::count(key))
      super::operator[](key)=val;
    return super::operator[](key);
  }
};
//END CUT HERE
#ifndef call_from_test
signed main(){
  return 0;
}
#endif

#line 1 "tools/defaultdict.cpp"

#include <bits/stdc++.h>
using namespace std;
#endif
//BEGIN CUT HERE
template<typename Key,typename T>
struct DefaultDict : map<Key, T>{
  using super = map<Key, T>;
  const T val;
  DefaultDict(T val_):val(val_){}
  T& operator[](const Key& key){
    if(!super::count(key))
      super::operator[](key)=val;
    return super::operator[](key);
  }
};
//END CUT HERE
#ifndef call_from_test
signed main(){
  return 0;
}
#endif

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