Submission #408322
Source Code Expand
#include <iostream>
#include <math.h>
#include <algorithm>
#include <string>
#include <stack>
#include <queue>
#include <set>
#include <cstdio>
#include <string.h>
#include <sstream>
#include <iomanip>
#include <map>
using namespace std;
#define REP(i, n) for(int i = 0; i < n; i++)
#define RREP(i, n) for(int i=(n)-1;i>=0;i--)
#define FOR(i, b, e) for(int i = b; i < e; i++)
#define to_bit(i) static_cast< bitset<8> >(i)
#define INF (1<<28)
#define int(n) int n; cin >> n;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> VI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef pair<long long, long long>PLL;
typedef queue<int> QI;
typedef priority_queue<int> maxpq;
typedef priority_queue<int, vector<int>, greater<int> > minpq;
struct edge{int to, cost;};
int gcd(int a, int b){if(a%b==0){return(b);}else{return(gcd(b,a%b));}};
int lcm(int m, int n){if((0 == m)||(0 == n)){return 0;} return ((m / gcd(m, n)) * n);};
unsigned long long comb(long n, long m){unsigned long long c = 1; m = (n - m < m ? n - m : m);
for(long ns = n - m + 1, ms = 1; ms <= m; ns ++, ms ++){c *= ns; c /= ms;} return c;};
void cp(int a1[], int a2[], int l){REP(i, l) a2[i] = a1[i];};
void cp(string a1[], string a2[], int l){REP(i, l) a2[i] = a1[i];};
double sq(double d){return d*d;};
int sq(int i){return i*i;};
double sqdist(int x1, int y1, int x2, int y2){
double dx = x1 - x2, dy = y1 - y2; return dx*dx + dy*dy;
};
bool inside(int y, int x, int h, int w){return 0 <= y && y <= (h-1) && 0 <= x && x <= (w-1);};
// 線分の交差判定
bool isCross(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4){
// 並行な場合
int m = (x2-x1)*(y4-y3)-(y2-y1)*(x4-x3);
if(m == 0) return false;
// 媒介変数の値が0より大きく1以下なら交差する、これは問題の状況によって変わるかも。
double r =(double)((y4-y3)*(x3-x1)-(x4-x3)*(y3-y1))/m;
double s =(double)((y2-y1)*(x3-x1)-(x2-x1)*(y3-y1))/m;
return (0 < r && r <= 1 && 0 < s && s <= 1);
};
// 外積の計算 AB CD の内積を求める
int crossProdct(int ax, int ay, int bx, int by, int cx, int cy, int dx, int dy){
int abx = bx - ax; int aby = by - ay;
int cdx = dx - cx; int cdy = dy - cy;
return abx * cdy - cdx * aby;
};
double crossProdct(double ax, double ay, double bx, double by, double cx, double cy, double dx, double dy){
double abx = bx - ax; double aby = by - ay;
double cdx = dx - cx; double cdy = dy - cy;
return abx * cdy - cdx * aby;
};
double innerProduct(double ax, double ay, double bx, double by, double cx, double cy, double dx, double dy){
double abx = bx - ax; double aby = by - ay;
double cdx = dx - cx; double cdy = dy - cy;
return abx * cdx + aby * cdy;
};
// 三角形の内部判定 ABCの中にPがあるか判定
bool inTriangle(int ax, int ay, int bx, int by, int cx, int cy, int px, int py){
int c1 = crossProdct(ax, ay, bx, by, bx, by, px, py);
int c2 = crossProdct(bx, by, cx, cy, cx, cy, px, py);
int c3 = crossProdct(cx, cy, ax, ay, ax, ay, px, py);
return (c1 > 0 && c2 > 0 && c3 > 0) || (c1 < 0 && c2 < 0 && c3 < 0);
};
bool inTriangle(double ax, double ay, double bx, double by, double cx, double cy, double px, double py){
double c1 = crossProdct(ax, ay, bx, by, bx, by, px, py);
double c2 = crossProdct(bx, by, cx, cy, cx, cy, px, py);
double c3 = crossProdct(cx, cy, ax, ay, ax, ay, px, py);
return (c1 > 0 && c2 > 0 && c3 > 0) || (c1 < 0 && c2 < 0 && c3 < 0);
};
// 三角形の外心
void circumcenter(double ax, double ay, double bx, double by, double cx, double cy, double res[3]){
// AB AC を求める
double abx = bx - ax; double aby = by - ay;
double acx = cx - ax; double acy = cy - ay;
double m = abx * acy - acx * aby; // 分母 m = 0 となるのは3点が一直線になるとき
double s = (abx * acx + aby * acy - sq(acx) - sq(acy)) / m; // 媒介変数s
res[0] = abx / 2 + s * aby / 2; res[1] = aby / 2 - s * abx / 2;
// cout << res[0] << " " << res[1] << endl;
res[2] = sqrt(sqdist(0, 0, res[0], res[1]));
res[0] += ax; res[1] += ay;
};
class BinaryIndexedTree{
public:
int n; vector<int> bit;
BinaryIndexedTree(int _n){
n = _n;
bit.resize(n+1,0);
}
int sum(int i){
int sum = 0;
while(i > 0){
sum += bit[i];
i -= i & -i;
}
return sum;
}
void add(int i, int v){
while(i <= n){
bit[i] += v;
i += i & -i;
}
}
};
class UnionFindTree{
public:
vector<int> parent, rank;
int n;
std::set<int> set;
// 初期化
UnionFindTree(int _n){
n = _n;
for(int i = 0; i < n; i++){
parent.resize(n);
rank.resize(n);
parent[i] = i;
rank[i] = 0;
}
}
// 根を求める
int find(int x){
if(parent[x] == x){
return x;
}else{
return parent[x] = find(parent[x]);
}
}
// xとyの集合を結合
void unite(int x, int y){
x = find(x);
y = find(y);
if(x == y){
set.insert(x);
return;
}
if(rank[x] < rank[y]){
parent[x] = y;
set.erase(x);
set.insert(y);
}else{
parent[y] = x;
set.erase(y);
set.insert(x);
if(rank[x] == rank[y]) rank[x]++;
}
}
// xとyが同じ集合か
bool same(int x, int y){
return find(x) == find(y);
}
// 集合の数を数える
int count(){
return (int)set.size();
}
};
// ワーシャルフロイド法
void warshallFloyd(int graph[100][100], int graph_size){
for(int mid_node = 0; mid_node < graph_size; mid_node++)
for(int s_node = 0; s_node < graph_size; s_node++)
for(int g_node = 0; g_node < graph_size; g_node++)
if(s_node == g_node) graph[s_node][g_node] = 0;
else graph[s_node][g_node] = min(graph[s_node][g_node], graph[s_node][mid_node] + graph[mid_node][g_node]);
};
// d:隣接行列 n:グラフのサイズ s:始点 dist:始点からの距離が入る配列
void dijkstra(int graph[1000][1000], int node_count, int start_node, int distances[1000]){
REP(i, node_count) distances[i] = -1;
distances[start_node] = 0;
priority_queue<PII, vector<PII>, greater<PII> > dijkstra_pq;
dijkstra_pq.push(PII(0, start_node));
while (!dijkstra_pq.empty()) {
PII p = dijkstra_pq.top(); dijkstra_pq.pop();
int i = p.second;
if(distances[i] < p.first) continue;
for(int j = 0; j < node_count; j++){
if(graph[i][j] == -1) continue;
if(distances[j] == -1){
distances[j] = distances[i] + graph[i][j];
dijkstra_pq.push(PII(distances[j], j));
}else if(distances[j] > distances[i] + graph[i][j]){
distances[j] = distances[i] + graph[i][j];
dijkstra_pq.push(PII(distances[j], j));
}
}
}
};
// return とかの位置によってうまい具合にする
int vi[4] = {-1, 1, 0, 0}, vj[4] = {0, 0, -1, 1};
void dfs2d(int i, int j, int r, int c){
// 終了条件とかをここに書く
REP(k, 4){
int ni = i + vi[k];
int nj = j + vj[k];
if(inside(ni, nj, r, c)){
dfs2d(ni, nj, r, c);
}
}
};
/**
* start
* @author yoshikyoto
*/
int main(int argc, const char * argv[]){
int R, C, k, n, r[100000], c[100000];
cin >> R >> C >> k >> n;
int stone_in_r[100000], stone_in_c[100000];
REP(i,100000){
stone_in_r[i] = 0;
stone_in_c[i] = 0;
}
REP(i,n){
cin >> r[i] >> c[i];
r[i]--, c[i]--;
// r[i]列にあるストーン、c[i]行にあるストーンの数を加算
stone_in_r[r[i]]++;
stone_in_c[c[i]]++;
}
int rcount_with_stones[100001], lcount_with_stones[100001];
REP(i,100001){
rcount_with_stones[i] = 0;
lcount_with_stones[i] = 0;
}
REP(i,R) rcount_with_stones[stone_in_r[i]]++;
REP(i,C) lcount_with_stones[stone_in_c[i]]++;
int cnt = 0;
REP(i,k+1){
cnt += rcount_with_stones[i] * lcount_with_stones[k-i];
}
REP(i,n){
// rr[i] cc[i] で kなら引き、k-1なら足す
int sum = stone_in_r[r[i]] + stone_in_c[c[i]];
if(sum == k) cnt--;
if(sum == k+1) cnt++;
}
cout << cnt << endl;
}
Submission Info
Submission Time |
|
Task |
C - 収集王 |
User |
yoshikyoto |
Language |
C++ (GCC 4.9.2) |
Score |
30 |
Code Size |
8898 Byte |
Status |
WA |
Exec Time |
134 ms |
Memory |
3112 KB |
Judge Result
Set Name |
Sample |
Subtask1 |
Subtask2 |
Score / Max Score |
0 / 0 |
30 / 30 |
0 / 70 |
Status |
|
|
|
Set Name |
Test Cases |
Sample |
subtask0-sample01.txt, subtask0-sample02.txt, subtask0-sample03.txt |
Subtask1 |
subtask0-sample01.txt, subtask0-sample02.txt, subtask0-sample03.txt, subtask1-01.txt, subtask1-02.txt, subtask1-03.txt, subtask1-04.txt, subtask1-05.txt, subtask1-06.txt, subtask1-07.txt, subtask1-08.txt, subtask1-09.txt, subtask1-10.txt, subtask1-11.txt, subtask1-12.txt, subtask1-13.txt, subtask1-14.txt, subtask1-15.txt |
Subtask2 |
subtask0-sample01.txt, subtask0-sample02.txt, subtask0-sample03.txt, subtask1-01.txt, subtask1-02.txt, subtask1-03.txt, subtask1-04.txt, subtask1-05.txt, subtask1-06.txt, subtask1-07.txt, subtask1-08.txt, subtask1-09.txt, subtask1-10.txt, subtask1-11.txt, subtask1-12.txt, subtask1-13.txt, subtask1-14.txt, subtask1-15.txt, subtask2-01.txt, subtask2-02.txt, subtask2-03.txt, subtask2-04.txt, subtask2-05.txt, subtask2-06.txt, subtask2-07.txt, subtask2-08.txt, subtask2-09.txt, subtask2-10.txt, subtask2-11.txt, subtask2-12.txt, subtask2-13.txt, subtask2-14.txt, subtask2-15.txt |
Case Name |
Status |
Exec Time |
Memory |
subtask0-sample01.txt |
AC |
29 ms |
2260 KB |
subtask0-sample02.txt |
AC |
26 ms |
2464 KB |
subtask0-sample03.txt |
AC |
28 ms |
2272 KB |
subtask1-01.txt |
AC |
28 ms |
2340 KB |
subtask1-02.txt |
AC |
29 ms |
2360 KB |
subtask1-03.txt |
AC |
28 ms |
2332 KB |
subtask1-04.txt |
AC |
28 ms |
2464 KB |
subtask1-05.txt |
AC |
29 ms |
2272 KB |
subtask1-06.txt |
AC |
30 ms |
2328 KB |
subtask1-07.txt |
AC |
28 ms |
2324 KB |
subtask1-08.txt |
AC |
28 ms |
2344 KB |
subtask1-09.txt |
AC |
28 ms |
2336 KB |
subtask1-10.txt |
AC |
28 ms |
2336 KB |
subtask1-11.txt |
AC |
27 ms |
2460 KB |
subtask1-12.txt |
AC |
28 ms |
2344 KB |
subtask1-13.txt |
AC |
26 ms |
2340 KB |
subtask1-14.txt |
AC |
28 ms |
2340 KB |
subtask1-15.txt |
AC |
28 ms |
2268 KB |
subtask2-01.txt |
AC |
30 ms |
2332 KB |
subtask2-02.txt |
AC |
29 ms |
2344 KB |
subtask2-03.txt |
AC |
52 ms |
2592 KB |
subtask2-04.txt |
AC |
111 ms |
3036 KB |
subtask2-05.txt |
AC |
119 ms |
3100 KB |
subtask2-06.txt |
WA |
133 ms |
3104 KB |
subtask2-07.txt |
AC |
105 ms |
3108 KB |
subtask2-08.txt |
AC |
130 ms |
3112 KB |
subtask2-09.txt |
AC |
132 ms |
3108 KB |
subtask2-10.txt |
WA |
131 ms |
3112 KB |
subtask2-11.txt |
WA |
134 ms |
3104 KB |
subtask2-12.txt |
AC |
130 ms |
3044 KB |
subtask2-13.txt |
AC |
132 ms |
3108 KB |
subtask2-14.txt |
WA |
131 ms |
3112 KB |
subtask2-15.txt |
AC |
130 ms |
3108 KB |