제출 #387021

#제출 시각아이디문제언어결과실행 시간메모리
387021Koosha_mv이상적인 도시 (IOI12_city)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h>
using namespace std;
#define erorp(x) cout<<#x<<"={"<<(x.F)<<" , "<<x.S<<"}"<<endl;
#define print(v,r) f(i,0,r) cout<<v[i]<<" "; cout<<endl;
#define Get(x,y) scanf("%I64d%I64d",&x,&y);
#define is_bit(x,y) (x%(1<<(y+1))>=(1<<y))
#define eror(x) cout<<#x<<'='<<(x)<<endl;
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define Gett(x,y) scanf("%d%d",&x,&y);
#define f(i,a,b) for(int i=a;i<b;i++)
#define get(x) scanf("%I64d",&x);
#define gett(x) scanf("%d",&x);
#define maxm(a,b) a=max(a,b);
#define minm(a,b) a=min(a,b);
#define Add(x,y) x=(x+y)%mod
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define F first
#define S second

const int N=1e5+9;

int n;
ll ans;
pair<int,int> a[N];
map<pair<int,int>,int> mark,cnt;

ll e(int x){
    return 1ll*x*(x-1)/2;
}
void swap(){
    f(i,0,n) swap(a[i].F,a[i].S);
}
void solve(){
    mark.clear();
    sort(a,a+n);
    f(i,0,n){
        int x=a[i].F,y=a[i].S;
        mark[mp(x,y)]=mark[mp(x,y-1)]+1;
        if(a[i+1].F!=x || a[i+1].S!=y+1){
            cnt[mp(x,y)]=cnt[mp(x-1,y)];
            ans+=e(n);
            ans-=e(cnt[mp(x,y)])+e(n-cnt[mp(x,y)]-mark[mp(x,y)]);
            cnt[mp(x,y)]+=mark[mp(x,y)];
        }
        for(int j=i-1;0<=j && a[j].F==a[j+1].F && a[j].S+1==a[j+1].S;j--)
            cnt[mp(a[j].F,a[j].S)]=cnt[mp(x,y)];
    }
}

int main(){
    cin>>n;
    f(i,0,n) cin>>a[i].F>>a[i].S;
    solve();
    swap();
    solve();
    cout<<ans-(e(n));
}

컴파일 시 표준 에러 (stderr) 메시지

/tmp/ccYjhJcs.o: In function `main':
city.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccGOWlZn.o:grader.cpp:(.text.startup+0x0): first defined here
/tmp/ccGOWlZn.o: In function `main':
grader.cpp:(.text.startup+0xff): undefined reference to `DistanceSum(int, int*, int*)'
collect2: error: ld returned 1 exit status