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Submission #683115

# Submission time Handle Problem Language Result Execution time Memory
683115 2023-01-17T17:53:55 Z Ronin13 Chessboard (IZhO18_chessboard) C++14
70 / 100
 385 ms 4224 KB 
#include <bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define f first
#define s second
#define pii pair<ll,ll>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
using namespace std;
/*
6 8
3 3 3 3
1 2 1 2
3 4 3 4
5 5 5 5
4 3 4 3
4 4 4 4
2 1 2 1
3 6 3 6
*/
int main(){
  //  freopen("school.in", "r", stdin);
 // freopen("school.out", "w", stdout);
    int n, k;
    cin >> n >> k;
    int x1[k + 1], x2[k + 1], y1[k + 1], y2[k + 1];
    for(int i =  1; i <= k; ++i){
        cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
        x1[i]--;
        y1[i]--;
        x2[i]--;
        y2[i]--;
    }
    ll ans = 1e18 + 1;
    for(ll a = 1; a <n; a++){
        if(n % a) continue;
        ll v = n / a;
        ll cnt = 0;
        if(v % 2 == 1)
            cnt += v * (v / 2) + (v + 1)  / 2;
        else cnt = v * v / 2;
        cnt *= a * a;
        for(int i = 1; i <= k; i++){
            int X = x1[i] / a, Y = y1[i] / a;
            if((X + Y) & 1)
                cnt++;
            else cnt--;
        }
        ans = min(ans, cnt);
    }
    for(ll a = 1; a <n; a++){
        if(n % a) continue;
        ll v = n / a;
        ll cnt = -1;
        if(v % 2 == 1)
            cnt += v * (v / 2) + (v + 1) / 2;
        else cnt = v * v / 2;
        cnt *= a * a;
        for(int i = 1; i <= k; i++){
            int X = x1[i] / a, Y = y1[i] / a;
            if((X + Y) & 1)
                cnt--;
            else cnt++;
        }
        ans = min(ans, cnt);
    }
    cout << ans;
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 2656 KB Output is correct
2 Correct 16 ms 904 KB Output is correct
3 Correct 42 ms 1784 KB Output is correct
4 Correct 41 ms 1760 KB Output is correct
5 Correct 56 ms 2420 KB Output is correct
6 Correct 37 ms 1636 KB Output is correct
7 Correct 10 ms 468 KB Output is correct
8 Correct 42 ms 1584 KB Output is correct
9 Correct 92 ms 3720 KB Output is correct
10 Correct 64 ms 2236 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 2 ms 304 KB Output is correct
15 Correct 1 ms 212 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 2 ms 304 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 23 ms 1108 KB Output is correct
17 Correct 69 ms 2864 KB Output is correct
18 Correct 94 ms 3420 KB Output is correct
19 Correct 135 ms 3048 KB Output is correct
20 Correct 136 ms 3408 KB Output is correct
21 Correct 66 ms 2804 KB Output is correct
22 Correct 2 ms 212 KB Output is correct
23 Correct 49 ms 1576 KB Output is correct
24 Correct 77 ms 3148 KB Output is correct
25 Correct 8 ms 564 KB Output is correct
26 Correct 56 ms 2032 KB Output is correct
27 Correct 68 ms 2344 KB Output is correct
28 Correct 78 ms 3300 KB Output is correct
29 Correct 26 ms 1296 KB Output is correct
30 Correct 3 ms 340 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 2656 KB Output is correct
2 Correct 16 ms 904 KB Output is correct
3 Correct 42 ms 1784 KB Output is correct
4 Correct 41 ms 1760 KB Output is correct
5 Correct 56 ms 2420 KB Output is correct
6 Correct 37 ms 1636 KB Output is correct
7 Correct 10 ms 468 KB Output is correct
8 Correct 42 ms 1584 KB Output is correct
9 Correct 92 ms 3720 KB Output is correct
10 Correct 64 ms 2236 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 2 ms 304 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 23 ms 1108 KB Output is correct
27 Correct 69 ms 2864 KB Output is correct
28 Correct 94 ms 3420 KB Output is correct
29 Correct 135 ms 3048 KB Output is correct
30 Correct 136 ms 3408 KB Output is correct
31 Correct 66 ms 2804 KB Output is correct
32 Correct 2 ms 212 KB Output is correct
33 Correct 49 ms 1576 KB Output is correct
34 Correct 77 ms 3148 KB Output is correct
35 Correct 8 ms 564 KB Output is correct
36 Correct 56 ms 2032 KB Output is correct
37 Correct 68 ms 2344 KB Output is correct
38 Correct 78 ms 3300 KB Output is correct
39 Correct 26 ms 1296 KB Output is correct
40 Correct 3 ms 340 KB Output is correct
41 Correct 145 ms 3576 KB Output is correct
42 Correct 101 ms 4004 KB Output is correct
43 Correct 104 ms 3532 KB Output is correct
44 Correct 103 ms 3856 KB Output is correct
45 Correct 103 ms 4172 KB Output is correct
46 Correct 149 ms 3952 KB Output is correct
47 Correct 90 ms 3660 KB Output is correct
48 Correct 107 ms 3728 KB Output is correct
49 Correct 90 ms 3496 KB Output is correct
50 Correct 363 ms 3860 KB Output is correct
51 Correct 366 ms 4100 KB Output is correct
52 Correct 371 ms 3720 KB Output is correct
53 Correct 370 ms 4080 KB Output is correct
54 Correct 355 ms 3792 KB Output is correct
55 Correct 385 ms 4224 KB Output is correct
56 Correct 334 ms 3688 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 70 ms 2656 KB Output is correct
10 Correct 16 ms 904 KB Output is correct
11 Correct 42 ms 1784 KB Output is correct
12 Correct 41 ms 1760 KB Output is correct
13 Correct 56 ms 2420 KB Output is correct
14 Correct 37 ms 1636 KB Output is correct
15 Correct 10 ms 468 KB Output is correct
16 Correct 42 ms 1584 KB Output is correct
17 Correct 92 ms 3720 KB Output is correct
18 Correct 64 ms 2236 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 308 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 300 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 304 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 2 ms 304 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 23 ms 1108 KB Output is correct
35 Correct 69 ms 2864 KB Output is correct
36 Correct 94 ms 3420 KB Output is correct
37 Correct 135 ms 3048 KB Output is correct
38 Correct 136 ms 3408 KB Output is correct
39 Correct 66 ms 2804 KB Output is correct
40 Correct 2 ms 212 KB Output is correct
41 Correct 49 ms 1576 KB Output is correct
42 Correct 77 ms 3148 KB Output is correct
43 Correct 8 ms 564 KB Output is correct
44 Correct 56 ms 2032 KB Output is correct
45 Correct 68 ms 2344 KB Output is correct
46 Correct 78 ms 3300 KB Output is correct
47 Correct 26 ms 1296 KB Output is correct
48 Correct 3 ms 340 KB Output is correct
49 Correct 145 ms 3576 KB Output is correct
50 Correct 101 ms 4004 KB Output is correct
51 Correct 104 ms 3532 KB Output is correct
52 Correct 103 ms 3856 KB Output is correct
53 Correct 103 ms 4172 KB Output is correct
54 Correct 149 ms 3952 KB Output is correct
55 Correct 90 ms 3660 KB Output is correct
56 Correct 107 ms 3728 KB Output is correct
57 Correct 90 ms 3496 KB Output is correct
58 Correct 363 ms 3860 KB Output is correct
59 Correct 366 ms 4100 KB Output is correct
60 Correct 371 ms 3720 KB Output is correct
61 Correct 370 ms 4080 KB Output is correct
62 Correct 355 ms 3792 KB Output is correct
63 Correct 385 ms 4224 KB Output is correct
64 Correct 334 ms 3688 KB Output is correct
65 Correct 0 ms 296 KB Output is correct
66 Incorrect 0 ms 212 KB Output isn't correct
67 Halted 0 ms 0 KB -