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Submission #704883

# Submission time Handle Problem Language Result Execution time Memory
704883 2023-03-03T06:23:47 Z PikaQ Zemljište (COCI22_zemljiste) C++17
70 / 70
 635 ms 2796 KB 
#include<bits/stdc++.h>
#define int long long
#define forn(i,n) for(int i = 0;i < n;i++)
#define Forn(i,n) for(int i = 1;i <= n;i++)
#define vi vector<int>
#define pb push_back
#define pii pair<int,int>
#define all(p) p.begin(),p.end()
#define F first
#define S second
using namespace std;
void debug() {cerr << endl;}
template <class T, class ...U> void debug(T a, U ... b) { cerr << a << " "; debug(b...);}
const int INF = 1e13 + 10;
const int MOD = (int) 998244353;
const int N = 509;
int n,m,a,b;
int c[N][N];
void build(){
	Forn(i,n) Forn(j,m){
		c[i][j] += c[i-1][j] + c[i][j-1] - c[i-1][j-1];
	}
}

int query(int sx,int sy,int ex,int ey){
	return c[ex][ey] - c[ex][sy-1] - c[sx-1][ey] + c[sx-1][sy-1];
}



void solve(){
	// pancake ( ^-^)_
	cin >> n >> m >> a >> b;
	if(a > b) swap(a,b);
	Forn(i,n) Forn(j,m) cin >> c[i][j];
	build();
	int ans = INF;
	Forn(i,n){
		for(int j = i;j <= n;j++){
			int lb = m,cur;
			for(int k = m;k >= 1;k--){
				 cur = query(i,0,j,k);
				 while(lb-1 >= 0 && cur - query(i,0,j,lb-1) < a){
					lb--;
				 }
				 assert(a > cur - query(i,0,j,lb));
				 ans = min(ans,a + b - 2*(cur - query(i,0,j,lb)));
			}
			//lb = 0;
			//debug(ans);
			lb = 0;
			Forn(k,m){
				cur = query(i,0,j,k);
				while(lb+1 < k && cur - query(i,0,j,lb+1) > b){
					lb++;
				}
				if(lb+1 <= m){
					if(cur - query(i,0,j,lb+1) >= a && cur - query(i,0,j,lb+1) <= b){
						ans = b - a;
					}	
				}
			}
			lb = 0;
			Forn(k,m){
				cur = query(i,0,j,k);
				while(lb+1 < k && cur - query(i,0,j,lb+1) > b){
					lb++;
				}
				if(cur - query(i,0,j,lb) > b){
					ans = min(ans,2*(cur - query(i,0,j,lb)) - a - b);
				}
			}
		}
	}
	cout << ans << '\n';
}

signed main(){
	cin.tie(NULL);
	cout.tie(NULL);
	ios_base::sync_with_stdio(0);
	solve();
	return 0;
}

Compilation message

Main.cpp: In function 'void solve()':
Main.cpp:26:31: warning: array subscript -1 is below array bounds of 'long long int [509]' [-Warray-bounds]
   26 |  return c[ex][ey] - c[ex][sy-1] - c[sx-1][ey] + c[sx-1][sy-1];
      |                     ~~~~~~~~~~^
Main.cpp:26:61: warning: array subscript -1 is below array bounds of 'long long int [509]' [-Warray-bounds]
   26 |  return c[ex][ey] - c[ex][sy-1] - c[sx-1][ey] + c[sx-1][sy-1];
      |                                                 ~~~~~~~~~~~~^
Main.cpp:26:31: warning: array subscript -1 is below array bounds of 'long long int [509]' [-Warray-bounds]
   26 |  return c[ex][ey] - c[ex][sy-1] - c[sx-1][ey] + c[sx-1][sy-1];
      |                     ~~~~~~~~~~^
Main.cpp:26:61: warning: array subscript -1 is below array bounds of 'long long int [509]' [-Warray-bounds]
   26 |  return c[ex][ey] - c[ex][sy-1] - c[sx-1][ey] + c[sx-1][sy-1];
      |                                                 ~~~~~~~~~~~~^
Main.cpp:26:31: warning: array subscript -1 is below array bounds of 'long long int [509]' [-Warray-bounds]
   26 |  return c[ex][ey] - c[ex][sy-1] - c[sx-1][ey] + c[sx-1][sy-1];
      |                     ~~~~~~~~~~^
Main.cpp:26:61: warning: array subscript -1 is below array bounds of 'long long int [509]' [-Warray-bounds]
   26 |  return c[ex][ey] - c[ex][sy-1] - c[sx-1][ey] + c[sx-1][sy-1];
      |                                                 ~~~~~~~~~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 4 ms 604 KB Output is correct
11 Correct 8 ms 596 KB Output is correct
12 Correct 10 ms 724 KB Output is correct
13 Correct 6 ms 596 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 6 ms 724 KB Output is correct
16 Correct 6 ms 724 KB Output is correct
17 Correct 6 ms 724 KB Output is correct
18 Correct 5 ms 720 KB Output is correct
19 Correct 5 ms 724 KB Output is correct
20 Correct 5 ms 596 KB Output is correct
21 Correct 5 ms 724 KB Output is correct
22 Correct 5 ms 596 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 4 ms 604 KB Output is correct
11 Correct 8 ms 596 KB Output is correct
12 Correct 10 ms 724 KB Output is correct
13 Correct 6 ms 596 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 6 ms 724 KB Output is correct
16 Correct 6 ms 724 KB Output is correct
17 Correct 6 ms 724 KB Output is correct
18 Correct 5 ms 720 KB Output is correct
19 Correct 5 ms 724 KB Output is correct
20 Correct 5 ms 596 KB Output is correct
21 Correct 5 ms 724 KB Output is correct
22 Correct 5 ms 596 KB Output is correct
23 Correct 599 ms 2300 KB Output is correct
24 Correct 635 ms 2584 KB Output is correct
25 Correct 574 ms 2592 KB Output is correct
26 Correct 583 ms 2636 KB Output is correct
27 Correct 391 ms 2544 KB Output is correct
28 Correct 596 ms 2628 KB Output is correct
29 Correct 561 ms 2584 KB Output is correct
30 Correct 560 ms 2660 KB Output is correct
31 Correct 78 ms 2264 KB Output is correct
32 Correct 551 ms 2588 KB Output is correct
33 Correct 571 ms 2692 KB Output is correct
34 Correct 572 ms 2796 KB Output is correct
35 Correct 566 ms 2764 KB Output is correct
36 Correct 572 ms 2788 KB Output is correct
37 Correct 574 ms 2776 KB Output is correct
38 Correct 569 ms 2696 KB Output is correct
39 Correct 583 ms 2632 KB Output is correct
40 Correct 577 ms 2712 KB Output is correct
41 Correct 447 ms 2592 KB Output is correct
42 Correct 433 ms 2736 KB Output is correct
43 Correct 461 ms 2716 KB Output is correct
44 Correct 436 ms 2692 KB Output is correct