結果
| 問題 |
No.655 E869120 and Good Triangles
|
| コンテスト | |
| ユーザー |
Lepton_s
|
| 提出日時 | 2018-02-23 23:54:26 |
| 言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 2,892 bytes |
| コンパイル時間 | 4,149 ms |
| コンパイル使用メモリ | 152,248 KB |
| 最終ジャッジ日時 | 2025-01-05 08:42:52 |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | RE * 3 |
| other | RE * 30 |
ソースコード
//#pragma GCC optimize ("O3")
//#pragma GCC target ("tune=native")
//#pragma GCC target ("avx")
//#include <bits/stdc++.h>
#include <algorithm>
#include <climits>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <ctime>
#include <iostream>
#include <sstream>
#include <functional>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <bitset>
#include <string>
#include <cstring>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <list>
#include <numeric>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll,ll> P;
typedef pair<P,ll> PPI;
typedef pair<ll,P> PIP;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<P> vp;
#define PQ(T) priority_queue<T,vector<T>,greater<T>>
#define PQ2(T) priority_queue<T>
const double PI = 3.14159265358979323846;
const double EPS = 1e-12;
const ll INF = 1LL<<29;
const ll mod = 1e9+7;
#define REP(i,a,b) for(ll (i)=a;(i)<(ll)(b);++(i))
#define rep(i,n) REP(i,0,n)
#define rep1(i,n) REP(i,1,n+1)
#define repd(i,n,d) for(ll (i)=0;(i)<(ll)(n);(i)+=(d))
#define all(v) (v).begin(), (v).end()
#define pb(x) push_back(x)
#define mp(x,y) make_pair((x),(y))
#define mset(m,v) memset((m),(v),sizeof(m))
#define chmin(x,y) ((x)=min((x),(y)))
#define chmax(x,y) ((x)=max((x),(y)))
#define fst first
#define snd second
#define UNIQUE(x) (x).erase(unique(all(x)),(x).end())
#define DEBUG(x) cerr<<"line ("<<__LINE__<<") "<<#x<<": "<<x<<endl;
template<class T> ostream &operator<<(ostream &os, const vector<T> &v){int n=v.size();rep(i,n)os<<v[i]<<(i==n-1?"":" ");return os;}
#define INIT std::ios::sync_with_stdio(false);std::cin.tie(0);
#define N 4010
int d[N][N];
int n, m;
ll S;
int dx[] = {-1,-1,0,1,1,0}, dy[] = {0,-1,-1,0,1,1};
ll w1[N][N], w2[N][N];
int memo[N][N];
ll f(ll x, ll y, ll z){
ll r = w1[y][n-x+2]-w1[y+z][n-x+2-z];
r -= w2[n+1][y+z]-w2[n+1][y]-w2[x+z][y+z]+w2[x+z][y];
return r;
}
int main(){
INIT;
scanf("%d%d%lld", &n, &m, &S);
rep1(i, n) fill(d[i]+1, d[i]+i+1, INF);
queue<P> q;
rep(i, m){
ll x, y;
cin>>x>>y;
d[x][y] = 0;
q.push(P(x, y));
}
while(!q.empty()){
P p = q.front(); q.pop();
int x = p.fst, y = p.snd;
rep(i, 6){
int x2 = x+dx[i], y2= y+dy[i];
if(x2<1||y2<1||x2>n||y2>x2||d[x2][y2]<INF) continue;
d[x2][y2] = d[x][y]+1;
q.push(P(x2, y2));
}
}
rep1(i, n) rep1(j, n+1) w2[i+1][j+1] = w2[i][j+1]+w2[i+1][j]-w2[i][j]+d[i][j];
rep1(i, n){
w1[1][i+1] = w1[1][i];
rep(j, i) w1[1][i+1] += d[n-j][j+1];
}
rep1(i, n) rep1(j, n-i+1) w1[i+1][j] = w1[i][j+1]-(w2[n+1][i+1]-w2[n-j+1][i+1]-w2[n+1][i]+w2[n-j+1][i]);
ll res = 0;
return -1;
rep1(i, n) rep1(j, i){
int lb = 0, ub = n-i+2;
while(ub-lb>1){
int md = (lb+ub+1)/2;
(f(i, j, md)>=S?ub:lb)=md;
}
//memo[i][j] = ub;
res += n-i+2-ub;
}
printf("%lld\n", res);
return 0;
}
Lepton_s