#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define ll long long
#define itr ::iterator
typedef pair<int,int> pii;
const ll MAX=1e6;
const ll mod=1e9;
vector<pii> vec;
ll pre[MAX];
ll cal(vector<ll> arr)
{
ll sum=0,res=0;
for(int A=1;A<arr.size();A++)
pre[A]=(pre[A-1]+arr[A])%mod;
for(int A=1;A<arr.size();A++)
{
res+=(sum*arr[A])%mod;
res%=mod;
sum+=pre[A];
sum%=mod;
}
return res;
}
int DistanceSum(int N, int *X, int *Y)
{
vector<ll> arr;
ll res=0,cur,lol;
for(int A=0;A<N;A++)
vec.pb(mp(X[A],Y[A]));
sort(vec.begin(),vec.end());
cur=0;
arr.pb(0);
while(cur<vec.size())
{
lol=vec[cur].second;
while(cur+1<vec.size() and vec[cur+1].first==vec[cur].first)
++cur;
arr.pb(vec[cur].second-lol+1);
++cur;
}
//for(auto A:arr)
// cout<<A<<" ha ha\n";
res=cal(arr);
for(int A=0;A<N;A++)
swap(vec[A].first,vec[A].second);
sort(vec.begin(),vec.end());
arr.clear();
arr.pb(0);
cur=0;
while(cur<vec.size())
{
lol=vec[cur].second;
while(cur+1<vec.size() and vec[cur+1].first==vec[cur].first)
++cur;
arr.pb(vec[cur].second-lol+1);
++cur;
}
//for(auto A:arr)
// cout<<A<<" o ";
res+=cal(arr);
res%=mod;
return res;
}
/*signed main()
{
ios_base::sync_with_stdio(false);
int X[]={1,1,2,2};
int Y[]={1,2,1,2};
cout<<DistanceSum(4,X,Y);
return 0;
}*/#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define ll long long
#define itr ::iterator
typedef pair<int,int> pii;
const ll MAX=1e6;
const ll mod=1e9;
vector<pii> vec;
ll pre[MAX];
ll cal(vector<ll> arr)
{
ll sum=0,res=0;
for(int A=1;A<arr.size();A++)
pre[A]=(pre[A-1]+arr[A])%mod;
for(int A=1;A<arr.size();A++)
{
res+=(sum*arr[A])%mod;
res%=mod;
sum+=pre[A];
sum%=mod;
}
return res;
}
int DistanceSum(int N, int *X, int *Y)
{
vector<ll> arr;
ll res=0,cur,lol;
for(int A=0;A<N;A++)
vec.pb(mp(X[A],Y[A]));
sort(vec.begin(),vec.end());
cur=0;
arr.pb(0);
while(cur<vec.size())
{
lol=vec[cur].second;
while(cur+1<vec.size() and vec[cur+1].first==vec[cur].first)
++cur;
arr.pb(vec[cur].second-lol+1);
++cur;
}
//for(auto A:arr)
// cout<<A<<" ha ha\n";
res=cal(arr);
for(int A=0;A<N;A++)
swap(vec[A].first,vec[A].second);
sort(vec.begin(),vec.end());
arr.clear();
arr.pb(0);
cur=0;
while(cur<vec.size())
{
lol=vec[cur].second;
while(cur+1<vec.size() and vec[cur+1].first==vec[cur].first)
++cur;
arr.pb(vec[cur].second-lol+1);
++cur;
}
//for(auto A:arr)
// cout<<A<<" o ";
res+=cal(arr);
res%=mod;
return res;
}
/*signed main()
{
ios_base::sync_with_stdio(false);
int X[]={1,1,2,2};
int Y[]={1,2,1,2};
cout<<DistanceSum(4,X,Y);
return 0;
}*/
Compilation message
city.cpp: In function 'long long int cal(std::vector<long long int>)':
city.cpp:21:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int A=1;A<arr.size();A++)
~^~~~~~~~~~~
city.cpp:23:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int A=1;A<arr.size();A++)
~^~~~~~~~~~~
city.cpp: In function 'int DistanceSum(int, int*, int*)':
city.cpp:42:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(cur<vec.size())
~~~^~~~~~~~~~~
city.cpp:45:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(cur+1<vec.size() and vec[cur+1].first==vec[cur].first)
~~~~~^~~~~~~~~~~
city.cpp:59:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(cur<vec.size())
~~~^~~~~~~~~~~
city.cpp:62:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(cur+1<vec.size() and vec[cur+1].first==vec[cur].first)
~~~~~^~~~~~~~~~~
city.cpp: At global scope:
city.cpp:92:10: error: redefinition of 'const long long int MAX'
const ll MAX=1e6;
^~~
city.cpp:11:10: note: 'const long long int MAX' previously defined here
const ll MAX=1e6;
^~~
city.cpp:93:10: error: redefinition of 'const long long int mod'
const ll mod=1e9;
^~~
city.cpp:12:10: note: 'const long long int mod' previously defined here
const ll mod=1e9;
^~~
city.cpp:95:13: error: redefinition of 'std::vector<std::pair<int, int> > vec'
vector<pii> vec;
^~~
city.cpp:14:13: note: 'std::vector<std::pair<int, int> > vec' previously declared here
vector<pii> vec;
^~~
city.cpp:97:11: error: redefinition of 'long long int pre [1000000]'
ll pre[MAX];
^
city.cpp:16:4: note: 'long long int pre [1000000]' previously declared here
ll pre[MAX];
^~~
city.cpp: In function 'long long int cal(std::vector<long long int>)':
city.cpp:99:4: error: redefinition of 'long long int cal(std::vector<long long int>)'
ll cal(vector<ll> arr)
^~~
city.cpp:18:4: note: 'long long int cal(std::vector<long long int>)' previously defined here
ll cal(vector<ll> arr)
^~~
city.cpp:102:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int A=1;A<arr.size();A++)
~^~~~~~~~~~~
city.cpp:104:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int A=1;A<arr.size();A++)
~^~~~~~~~~~~
city.cpp: In function 'int DistanceSum(int, int*, int*)':
city.cpp:114:5: error: redefinition of 'int DistanceSum(int, int*, int*)'
int DistanceSum(int N, int *X, int *Y)
^~~~~~~~~~~
city.cpp:33:5: note: 'int DistanceSum(int, int*, int*)' previously defined here
int DistanceSum(int N, int *X, int *Y)
^~~~~~~~~~~
city.cpp:123:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(cur<vec.size())
~~~^~~~~~~~~~~
city.cpp:126:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(cur+1<vec.size() and vec[cur+1].first==vec[cur].first)
~~~~~^~~~~~~~~~~
city.cpp:140:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(cur<vec.size())
~~~^~~~~~~~~~~
city.cpp:143:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(cur+1<vec.size() and vec[cur+1].first==vec[cur].first)
~~~~~^~~~~~~~~~~
