답안 #338271

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
338271 2020-12-22T20:32:02 Z Tosic UFO (IZhO14_ufo) C++14
0 / 100
240 ms 145444 KB
#include <bits/stdc++.h>
#define maxn 1000010
using namespace std;

int n, m, r, k, p;
vector<vector<int> > a, c, rv;
//vector<int> rv;

struct segtree
{
	vector<int> tree;
	vector<int> resIdx;
	vector<int> *a;
	int n, glR;
	segtree(){
	    
	}
	void init(int sz, vector<int>& tmp){
		n = sz;
		tree.resize(2*n+10, 0);
		a = &tmp;
		init(0, 0, n-1);
	}
	void kidsO(int idx){
		tree[idx] = max(tree[idx*2+1], tree[idx*2+2]);
	}
	void init(int idx, int l, int r){
		if(l == r){
			tree[idx] = a->at(l);
			return;
		}
		int mid = (l+r)/2;
		init(idx*2+1, l ,mid);
		init(idx*2+2, mid+1, r);
		kidsO(idx);
	}
	void getF(int idx, int l, int r, int x){
		// first index so a[l] >= x
		if(tree[idx] < x){
			return;
		}
		if(l == r){
			--glR;//cerr << x << ' ' << tree[idx] << ' '<< l << '\n';
			resIdx.push_back(l);
			return;
		}
		int mid = (l+r)/2;
		if(tree[1+2*idx] >= x){
			getF(idx*2+1, l, mid, x);

		}if(glR){
				getF(idx*2+2, mid+1, r, x);
			}
			return;
		return;
	}
	void getL(int idx, int l, int r, int x){
		// lst index so a[l] >= x
		if(tree[idx] < x){
			return;
		}
		if(l == r){
			//cerr << glR << '\n';
			--glR;
			resIdx.push_back(l);
			return;
		}
		int mid = (l+r)/2;
		if(tree[2+2*idx] >= x){
			getL(idx*2+2, mid+1, r, x);
		}
		if(glR){
			getL(2*idx+1, l, mid, x);
		}
	}
	void upd(int idx, int l, int r, int x, int newV){
		if(l == r){
			a->at(l) += newV;
			tree[idx] += newV;
			return;
		}
		int mid = (l+r)/2;
		if(x<=mid){
			upd(2*idx+1, l, mid, x, newV);
		}
		if(x > mid){
			upd(2*(idx+1), mid+1, r, x, newV);
		}
		kidsO(idx);
	}
	int query(int idx, int l, int r, int qL, int qR){
		if(l > qR or r < qL){
			return 0;
		}
		if(l >=qL and r <= qR){
			return tree[idx];
		}
		int mid = (l+r)/2;
		return max(query(idx*2+1, l, mid, qL, qR), query(idx*2+2, mid+1, r, qL, qR));
	}
};

vector<segtree> rTrees, cTrees;

int tmpS(int x, int y){
	if(x < 0 or y < 0){
		return 0;
	}
	return c[x][y];
}

int getMax(){
	for(int i = 0; i < m; ++i){
		c[0][i] = a[0][i];
		if(i){
			c[0][i] += c[0][i-1];
		}
	}
	for(int i = 0; i < n; ++i){
		c[i][0] = a[i][0];
		if(i){
			c[i][0] += c[i-1][0];
		}
	}
	for(int i = 1; i < n; ++i){
		for(int j = 1; j < m; ++j){
			c[i][j] = a[i][j]+c[i-1][j]+c[i][j-1]-c[i-1][j-1];
		}
	}
	int res = 0;
	for(int i = 0; i < n-p+1; ++i){
		for(int j = 0; j < m-p+1; ++j){
			res = max(tmpS(i+p-1, j+p-1) - tmpS(i+p-1, j-1) - tmpS(i-1, j+p-1) + tmpS(i-1, j-1), res);
		}
	}
	return res;
}

int main(){
	ios_base::sync_with_stdio(0);
	cout.tie(0);
	cin.tie(0);
	cin >> n >> m >> r >> k >> p;
	a.resize(n, vector<int>(m));
	c.resize(n, vector<int>(m));
	rv.resize(m, vector<int>(n));
	//rv.resize(m, 0);
	for(int i = 0; i < n; ++i){
		for(int j = 0; j < m; ++j){
			cin >> a[i][j];
		}
		rTrees.push_back(segtree());
		rTrees[i].init(m, a[i]);
	}
	for(int i = 0; i < m; ++i){
		for(int j = 0;j<n; ++ j){
			rv[i][j] = a[j][i];
		}
		cTrees.push_back(segtree());
		cTrees[i].init(n, rv[i]);
	} return 0;
	for(int i = 0; i < k; ++i){
		char c;
		int h, y;
		cin >> c >> y >> h;
		y--;
		//for(int j = 0; j < r; ++j){
			if(c == 'N'){
				cTrees[y].resIdx.clear();
				cTrees[y].glR = r;
				cTrees[y].getF(0, 0, n-1, h);
				for(auto tmp : cTrees[y].resIdx){
					cTrees[y].upd(0, 0, n-1, tmp, -1);
					rTrees[tmp].upd(0, 0, m-1, y, -1);
					//cerr << tmp << ' ' << y << '\n';
					//a[tmp][y]--;
				}
				cTrees[y].resIdx.clear();
			}
			if(c == 'S'){
				cTrees[y].resIdx.clear();
				cTrees[y].glR =r;
				cTrees[y].getL(0, 0, n-1, h);
				for(auto tmp : cTrees[y].resIdx){
					cTrees[y].upd(0, 0, n-1, tmp, -1);
					rTrees[tmp].upd(0, 0, m-1, y, -1);
					//cerr << tmp << ' ' <<  y<< '\n';
					//a[tmp][y]--;
				}
				cTrees[y].resIdx.clear();
			}
			if(c == 'W'){
				rTrees[y].resIdx.clear();
				rTrees[y].glR = r;
				rTrees[y].getF(0, 0, m-1, h);
				for(auto tmp : rTrees[y].resIdx){
					rTrees[y].upd(0, 0, m-1, tmp, -1);
					cTrees[tmp].upd(0, 0, n-1, y, -1);
					//cerr << y << ' ' << tmp << '\n';
					//a[y][tmp] --;
				}
				rTrees[y].resIdx.clear();

			}
			if(c == 'E'){
				rTrees[y].resIdx.clear();
				rTrees[y].glR = r;
				rTrees[y].getL(0, 0, m-1, h);
				for(auto tmp : rTrees[y].resIdx){
					rTrees[y].upd(0, 0, m-1, tmp, -1);
					cTrees[tmp].upd(0, 0, n-1, y, -1);
					//cerr << y << ' ' << tmp << '\n';
					//a[y][tmp] --;
				}
				rTrees[y].resIdx.clear();
			}
		//}
	}
	for(int i = 0; i < n; ++i){
		for(int j = 0; j < m; ++j){
			//cerr << a[i][j] << ' ';
		}
		//cerr << '\n';
	}
	cout << getMax();
}
/*4 8 2 6 2
1 1 1 1 1 1 1 1
1 2 3 1 1 1 3 1
1 2 1 1 3 1 1 1
1 1 1 1 1 1 1 2
N 2 2
W 2 2
W 2 3
E 2 1
S 4 1
S 7 1*/
# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 364 KB Output isn't correct
2 Incorrect 0 ms 364 KB Output isn't correct
3 Runtime error 1 ms 620 KB Execution killed with signal 6 (could be triggered by violating memory limits)
4 Runtime error 2 ms 876 KB Execution killed with signal 6 (could be triggered by violating memory limits)
5 Runtime error 3 ms 2028 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Runtime error 12 ms 12524 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Runtime error 150 ms 52068 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Runtime error 121 ms 48820 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Runtime error 116 ms 44328 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Runtime error 119 ms 48740 KB Execution killed with signal 11 (could be triggered by violating memory limits)
11 Runtime error 119 ms 50124 KB Execution killed with signal 11 (could be triggered by violating memory limits)
12 Runtime error 120 ms 48740 KB Execution killed with signal 11 (could be triggered by violating memory limits)
13 Runtime error 155 ms 77000 KB Execution killed with signal 11 (could be triggered by violating memory limits)
14 Runtime error 122 ms 50452 KB Execution killed with signal 11 (could be triggered by violating memory limits)
15 Runtime error 128 ms 49636 KB Execution killed with signal 11 (could be triggered by violating memory limits)
16 Runtime error 119 ms 50324 KB Execution killed with signal 11 (could be triggered by violating memory limits)
17 Runtime error 187 ms 77000 KB Execution killed with signal 11 (could be triggered by violating memory limits)
18 Runtime error 156 ms 85456 KB Execution killed with signal 11 (could be triggered by violating memory limits)
19 Runtime error 132 ms 56540 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Runtime error 240 ms 145444 KB Execution killed with signal 11 (could be triggered by violating memory limits)