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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#733959#7105. Pixel ArtmanaRE 0ms3492kbC++205.9kb2024-11-10 22:27:552024-11-10 22:27:55

Judging History

你现在查看的是最新测评结果

  • [2024-11-10 22:27:55]
  • 评测
  • 测评结果:RE
  • 用时:0ms
  • 内存:3492kb
  • [2024-11-10 22:27:55]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
int fa[100005];//fa是父亲 siz是所在并查集大小
int find(int x){//查询父节点
    while (x != fa[x]) x = fa[x] = fa[fa[x]];
    return x;
}
bool merge(int x, int y){//合并 x 和 y 所在并查集
    x = find(x), y = find(y);
    if (x == y) return false;
    if(x > y){
    	swap(x, y);
    }
    fa[y] = x;
    return true;
}
i64 n, m, k, s;
i64 res[100005][2], pre[100005];
vector<array<i64, 4>> g;
vector<pair<i64,i64>> v1[100005];
vector<pair<i64,i64>> v2[100005];
vector<pair<i64,i64>> v3[100005];
vector<i64> v[100005];//分别存横边左顶点,竖边上顶点,竖边下顶点,和所有边
vector<pair<i64,i64>> v4[100005];
unordered_map<i64,i64> mp1;
unordered_map<i64,i64> mp2;
//思路:按照左/上端点进行排序,并查集维护连通块,按排序遍历每条边,合并
void init(){
	g.resize(k + 1);
	mp1.clear();
	mp2.clear();
	s = 0;
	g[0][0] = g[0][1] = g[0][2] = g[0][3] = -1;
	for(int i = 0; i <= n + 1; i++){
		pre[i] = res[i][0] = res[i][1] = 0; 
		v1[i].clear();
		v2[i].clear();
		v3[i].clear();
		v[i].clear();
	}
	for(int i = 0; i <= k + 1; i++){
		fa[i] = i;
		v4[i].clear();
	}
}
void solve(){
	i64 temp, summ, sub, x, y;
    cin >> n >> m >> k;
    init();
    for (int i = 1; i <= k; i++){
        cin >> g[i][0];
        cin >> g[i][1];
        cin >> g[i][2];
        cin >> g[i][3];
    }
    
    sort(g.begin() + 1, g.begin() + 1 + k);
    
    for (int i = 1; i <= k; i++){
        if(g[i][0] == g[i][2]){//横边
        	res[g[i][0]][0] += g[i][3] - g[i][1] + 1;
        	v1[g[i][0]].push_back(make_pair(g[i][1], i));
        }
        else{//竖边
        	pre[g[i][0]]++;
        	pre[g[i][2]+1]--;
        	v2[g[i][0]].push_back(make_pair(g[i][1], i));
        	v3[g[i][2]].push_back(make_pair(g[i][1], i));

			if(mp1[g[i][1]] == 0){
				s++;
				mp1[g[i][1]] = s;
				mp2[s] = g[i][1];
			}
			v4[mp1[g[i][1]]].push_back(make_pair(g[i][0], i));
        }
        v[g[i][0]].push_back(i);
    }
    for(int i = 1; i <= s; i++){
    	sort(v4[i].begin(),v4[i].end());
    }
    for(int i = 1; i <= n; i++){
    	if(v3[i].size()){
    		sort(v3[i].begin(),v3[i].end());
    	}
    }
    summ = 0;
    for(int i = 1; i <= n; i++){//统计答案s
    	summ += pre[i];
    	res[i][0] += summ;	
    	res[i][0] += res[i-1][0];
    }
    
    for(int i = 1; i <= k; i++){
    	if(g[i][0] == g[i][2]){//横边
    		//横边与横边
    		sub = lower_bound(v1[g[i][0] - 1].begin(), v1[g[i][0] - 1].end(), make_pair(g[i][1], 0ll)) - v1[g[i][0] - 1].begin();
    		if(sub > 0){
    			y = v1[g[i][0] - 1][sub - 1].second;
    			if(g[y][3] >= g[i][1]){
    				merge(y, i);
    			}
    		}
    		for(int j = sub; j < v1[g[i][0] - 1].size(); j++){
    			x = v1[g[i][0] - 1][j].first, y = v1[g[i][0] - 1][j].second;
    			if(x > g[i][3]){
    				break;
    			}
    			merge(y, i);
    		}
    		if(g[i-1][0] == g[i-1][2] && g[i-1][0] == g[i][0] && g[i-1][3] == g[i][1] - 1){
    			merge(i-1, i);
    		}
    		//横边和竖边
    		sub = lower_bound(v2[g[i][0] + 1].begin(), v2[g[i][0] + 1].end(), make_pair(g[i][1], 0ll)) - v2[g[i][0] + 1].begin();
    		for(int j = sub; j < v2[g[i][0] + 1].size(); j++){
    			x = v2[g[i][0] + 1][j].first, y = v2[g[i][0] + 1][j].second;
    			if(x > g[i][3]){
    				break;
    			}
    			merge(y, i);
    		}
    		sub = lower_bound(v3[g[i][0] - 1].begin(), v3[g[i][0] - 1].end(), make_pair(g[i][1], 0ll)) - v3[g[i][0] - 1].begin();
    		for(int j = sub; j < v3[g[i][0] - 1].size(); j++){
    			x = v3[g[i][0] - 1][j].first, y = v3[g[i][0] - 1][j].second;
    			if(x > g[i][3]){
    				break;
    			}
    			merge(y, i);
    		}
			if(mp1[g[i][1] - 1] > 0){
				sub = upper_bound(v4[mp1[g[i][1] - 1]].begin(), v4[mp1[g[i][1] - 1]].end(), make_pair(g[i][0],10000000ll)) - v4[mp1[g[i][1] - 1]].begin();
				if(sub > 0){
					y = v4[mp1[g[i][1] - 1]][sub - 1].second;
					if(g[y][2] >= g[i][0]){
						merge(y, i);
					}
				}
			}
			if(mp1[g[i][3] + 1] > 0){
				sub = upper_bound(v4[mp1[g[i][3] + 1]].begin(), v4[mp1[g[i][3] + 1]].end(), make_pair(g[i][0],10000000ll)) - v4[mp1[g[i][3] + 1]].begin();
				if(sub > 0){
					y = v4[mp1[g[i][3] + 1]][sub - 1].second;
					if(g[y][2] >= g[i][0]){
						merge(y, i);
					}
				}
			}
        }
        else{//竖边
        	
        	sub = lower_bound(v4[mp1[g[i][1]]].begin(), v4[mp1[g[i][1]]].end(), make_pair(g[i][0], 0ll)) - v4[mp1[g[i][1]]].begin();
        	if(sub > 0){
        		y = v4[mp1[g[i][1]]][sub - 1].second;
        		if(g[y][2] == g[i][0] - 1){
        			merge(y, i);
        		}
        	}
        	if(mp1[g[i][1] - 1] > 0){
	        	sub = lower_bound(v4[mp1[g[i][1]] - 1].begin(), v4[mp1[g[i][1]] - 1].end(), make_pair(g[i][0], 0ll)) - v4[mp1[g[i][1]] - 1].begin();
	        	if(sub > 0){
	        		y = v4[mp1[g[i][1] - 1]][sub - 1].second;
	        		if(g[y][2] >= g[i][0]){
	        			merge(y, i);
	        		}
	        	}
	        	for(int j = sub; j < v4[mp1[g[i][1]] - 1].size(); j++){
	        		x = v4[mp1[g[i][1]] - 1][j].first, y = v4[mp1[g[i][1]] - 1][j].second;
	        		if(x > g[i][2]){
	        			break;
	        		}
	        		merge(y, i);
	        	}
        	}
        	
        }
    }
    
    
    summ = 0;
    for(int i = 1; i <= k; i++){
    	if(find(i) == i){
    		summ++;
    	}
    }
    res[n][1] = summ;
    for(int i = n - 1; i >= 1; i--){
    	for(int j = 0; j < v[i+1].size(); j++){
    		if(find(v[i+1][j]) == v[i+1][j]){
    			summ--;
    		}
    	}
    	res[i][1] = summ;
    }
    
    for(int i = 1; i <= n; i++){
    	cout << res[i][0] << ' ' << res[i][1] << endl;
    }
    return;
}
int main(){
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);
	long long tt = 1;
	cin >> tt;
	while(tt--){
		solve();
	}
    return 0;
}


详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3492kb

input:

3
2 5 2
1 1 1 2
2 3 2 5
2 5 2
1 1 1 3
2 3 2 5
3 3 3
1 1 1 2
3 1 3 2
1 3 2 3

output:

2 1
5 2
3 1
6 1
3 1
4 1
6 2

result:

ok 7 lines

Test #2:

score: -100
Runtime Error

input:

2130
2 5 2
1 1 1 2
2 3 2 5
2 5 2
1 1 1 3
2 3 2 5
3 3 3
1 1 1 2
3 1 3 2
1 3 2 3
3 100 51
1 2 2 2
1 4 2 4
1 6 2 6
1 8 2 8
1 10 2 10
1 12 2 12
1 14 2 14
1 16 2 16
1 18 2 18
1 20 2 20
1 22 2 22
1 24 2 24
1 26 2 26
1 28 2 28
1 30 2 30
1 32 2 32
1 34 2 34
1 36 2 36
1 38 2 38
1 40 2 40
1 42 2 42
1 44 2 44
...

output:

2 1
5 2
3 1
6 1
3 1
4 1
6 2
50 1
100 1
200 1
50 1
150 1
200 1
2 1
4 1
6 1
8 1
10 1
12 1
14 1
16 1
18 1
20 1
22 1
24 1
26 1
28 1
30 1
32 1
34 1
36 1
38 1
40 1
42 1
44 1
46 1
48 1
50 1
52 1
54 1
56 1
58 1
60 1
62 1
64 1
66 1
68 1
70 1
72 1
74 1
76 1
78 1
80 1
82 1
84 1
86 1
88 1
90 1
92 1
94 1
96 1
98...

result: