oj.uz

Submission #43885

# Submission time Handle Problem Language Result Execution time Memory
43885 2018-03-27T06:12:10 Z Tenuun Chessboard (IZhO18_chessboard) C++11
31 / 100
 199 ms 644 KB 
#include<bits/stdc++.h>

using namespace std;

int main(){
	int n, k, x, y, x1, y1, res=INT_MAX;
	cin >> n >> k;
	vector<int>fac;
	map<int, int>map;
	for(int i=1; i<n; i++){
		if(n%i==0){
			fac.push_back(i);
		}
	}
	if(k==0){
		int res;
		int i=fac.size()-1;
		if((n/fac[i])%2){	
			res=(n*n-fac[i]*fac[i])/2;	
		}
		else{
			res=(n*n)/2;
		}
		cout << res;
		return 0;
	}
	for(int j=0; j<k; j++){
		cin >> x >> y >> x1 >> y1;
		for(int i=0; i<fac.size(); i++){
			if((x%(2*fac[i])>=1 && x%(2*fac[i])<=fac[i] && y%(2*fac[i])<=fac[i]&&y%(2*fac[i])>=1) ||((x%(2*fac[i])==0 || x%(2*fac[i])>fac[i]) && (y%(2*fac[i])>fac[i]||y%(2*fac[i])==0)) )map[i+1]++;
		}
	}
	int i=0;
	for (auto it=map.begin(); it!=map.end(); ++it){
		int res1, res2;
		i=it->first-1;
		//cout << it->first << it->second << endl;
		if(n/fac[i]%2){	
			res1=(n*n-fac[i]*fac[i])/2+fac[i]*fac[i]-it->second+k-it->second;
			res2=it->second+(n*n-fac[i]*fac[i])/2-(k-it->second);
			res2=n*n-res1;
			//cout << it->second << " " << res1 << " " << res2 << endl;	
		}
		else{
			res1=(n*n)/2-it->second+k-it->second;
			res2=n*n-res1;
		}
		res=min(res, res1);
		res=min(res, res2);
		i++;
	}
	cout << res;
    return 0;
}

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:29:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0; i<fac.size(); i++){
                ~^~~~~~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 118 ms 428 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 496 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 588 KB Output is correct
4 Correct 3 ms 588 KB Output is correct
5 Correct 3 ms 620 KB Output is correct
6 Correct 2 ms 620 KB Output is correct
7 Correct 2 ms 620 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 2 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 2 ms 620 KB Output is correct
13 Correct 3 ms 620 KB Output is correct
14 Correct 3 ms 620 KB Output is correct
15 Correct 3 ms 620 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 496 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 588 KB Output is correct
4 Correct 3 ms 588 KB Output is correct
5 Correct 3 ms 620 KB Output is correct
6 Correct 2 ms 620 KB Output is correct
7 Correct 2 ms 620 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 2 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 2 ms 620 KB Output is correct
13 Correct 3 ms 620 KB Output is correct
14 Correct 3 ms 620 KB Output is correct
15 Correct 3 ms 620 KB Output is correct
16 Correct 34 ms 620 KB Output is correct
17 Correct 95 ms 620 KB Output is correct
18 Correct 118 ms 620 KB Output is correct
19 Correct 186 ms 620 KB Output is correct
20 Correct 199 ms 620 KB Output is correct
21 Correct 94 ms 620 KB Output is correct
22 Correct 2 ms 620 KB Output is correct
23 Correct 55 ms 620 KB Output is correct
24 Correct 108 ms 636 KB Output is correct
25 Correct 14 ms 636 KB Output is correct
26 Correct 70 ms 636 KB Output is correct
27 Correct 92 ms 644 KB Output is correct
28 Correct 118 ms 644 KB Output is correct
29 Correct 45 ms 644 KB Output is correct
30 Correct 5 ms 644 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 118 ms 428 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -