oj.uz

Submission #336153

# Submission time Handle Problem Language Result Execution time Memory
336153 2020-12-14T22:39:22 Z mat_v Chessboard (IZhO18_chessboard) C++14
100 / 100
 581 ms 5996 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>

#define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
#define fb(i,a,b) for(int (i) = (a); (i) >= (b); --(i))
#define mod 998244353
#define xx firsts
#define yy second
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define ll long long
#define pii pair<int,int>
#define maxn 200005


using namespace std;
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>,rb_tree_tag, tree_order_statistics_node_update> ordered_set;/// find_by_order(x)(x+1th) , order_of_key() (strictly less)
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());


int n;
int m;

struct kv{
    ll x1;
    ll y1;
    ll x2;
    ll y2;
}niz[maxn];

ll get(ll l, ll r, ll broj){
    if(l > r)return 0;
    ll prvi = (l/broj)*broj;
    if(l != prvi)prvi += broj;
    ll last = (r/broj)*broj;
    if(prvi > r){
        if((l%broj) < broj/2){
            return min((broj/2)-1, (r%broj))-(l%broj)+1;
        }
        return 0;
    }
    ll klk = last/broj - prvi/broj;
    return (klk)*(broj/2) + get(l,prvi-1,broj) + get(last+1,r,broj)+1;
}

int main()
{

    ios_base::sync_with_stdio(false); cin.tie(0);

    cin >> n >> m;
    ff(i,1,m){
        int a,b,c,d;
        cin >> a >> b >> c >> d;
        a--; b--; c--; d--;
        niz[i] = {a,b,c,d};
    }
    ll ans = 1e9;
    ans *= 10;
    ff(i,1,n - 1){
        if(n%i != 0)continue;
        ll b = 0;
        ll w = 0;
        ll tr = 2*i;
        ff(j,1,m){
            ll uk = 0;
            ll blackrow = get(niz[j].x1,niz[j].x2,tr);
            ll blackcol = get(niz[j].y1,niz[j].y2,tr);
            uk += (blackrow*blackcol);
            blackrow = niz[j].x2 - niz[j].x1 + 1 - blackrow;
            blackcol = niz[j].y2 - niz[j].y1 + 1 - blackcol;
            uk += (blackrow*blackcol);
            b += uk;
            w += ((niz[j].x2 - niz[j].x1 + 1) * (niz[j].y2 - niz[j].y1 + 1) - uk);
        }
        ll str = (n/i);
        ll p1 = (str*str + 1) / 2;
        ll p2 = (str*str) / 2;
        ll pomm = i;
        p1 *= (pomm*pomm);
        p2 *= (pomm*pomm);
        ll tmp = min(p1 - b + w, p2 - w + b);
        //cout << i << " " << tmp << "\n";
        ans = min(ans, tmp);
    }
    cout << ans << "\n";
    return 0;
}
/*
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
*/

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
chessboard.cpp:55:5: note: in expansion of macro 'ff'
   55 |     ff(i,1,m){
      |     ^~
chessboard.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
chessboard.cpp:63:5: note: in expansion of macro 'ff'
   63 |     ff(i,1,n - 1){
      |     ^~
chessboard.cpp:6:27: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
chessboard.cpp:68:9: note: in expansion of macro 'ff'
   68 |         ff(j,1,m){
      |         ^~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 2284 KB Output is correct
2 Correct 8 ms 876 KB Output is correct
3 Correct 17 ms 1644 KB Output is correct
4 Correct 19 ms 1844 KB Output is correct
5 Correct 23 ms 2028 KB Output is correct
6 Correct 15 ms 1388 KB Output is correct
7 Correct 4 ms 620 KB Output is correct
8 Correct 15 ms 1388 KB Output is correct
9 Correct 38 ms 3180 KB Output is correct
10 Correct 22 ms 1900 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 16 ms 1260 KB Output is correct
17 Correct 31 ms 2928 KB Output is correct
18 Correct 42 ms 3436 KB Output is correct
19 Correct 111 ms 3180 KB Output is correct
20 Correct 123 ms 3564 KB Output is correct
21 Correct 33 ms 2776 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 25 ms 1644 KB Output is correct
24 Correct 39 ms 3180 KB Output is correct
25 Correct 5 ms 620 KB Output is correct
26 Correct 25 ms 2156 KB Output is correct
27 Correct 35 ms 2412 KB Output is correct
28 Correct 52 ms 3308 KB Output is correct
29 Correct 13 ms 1408 KB Output is correct
30 Correct 2 ms 492 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 2284 KB Output is correct
2 Correct 8 ms 876 KB Output is correct
3 Correct 17 ms 1644 KB Output is correct
4 Correct 19 ms 1844 KB Output is correct
5 Correct 23 ms 2028 KB Output is correct
6 Correct 15 ms 1388 KB Output is correct
7 Correct 4 ms 620 KB Output is correct
8 Correct 15 ms 1388 KB Output is correct
9 Correct 38 ms 3180 KB Output is correct
10 Correct 22 ms 1900 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 16 ms 1260 KB Output is correct
27 Correct 31 ms 2928 KB Output is correct
28 Correct 42 ms 3436 KB Output is correct
29 Correct 111 ms 3180 KB Output is correct
30 Correct 123 ms 3564 KB Output is correct
31 Correct 33 ms 2776 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 25 ms 1644 KB Output is correct
34 Correct 39 ms 3180 KB Output is correct
35 Correct 5 ms 620 KB Output is correct
36 Correct 25 ms 2156 KB Output is correct
37 Correct 35 ms 2412 KB Output is correct
38 Correct 52 ms 3308 KB Output is correct
39 Correct 13 ms 1408 KB Output is correct
40 Correct 2 ms 492 KB Output is correct
41 Correct 102 ms 2924 KB Output is correct
42 Correct 59 ms 5612 KB Output is correct
43 Correct 75 ms 5120 KB Output is correct
44 Correct 49 ms 5484 KB Output is correct
45 Correct 42 ms 5740 KB Output is correct
46 Correct 115 ms 5484 KB Output is correct
47 Correct 38 ms 5228 KB Output is correct
48 Correct 57 ms 5100 KB Output is correct
49 Correct 43 ms 4972 KB Output is correct
50 Correct 458 ms 5484 KB Output is correct
51 Correct 497 ms 5752 KB Output is correct
52 Correct 449 ms 5356 KB Output is correct
53 Correct 493 ms 5716 KB Output is correct
54 Correct 471 ms 5228 KB Output is correct
55 Correct 503 ms 5996 KB Output is correct
56 Correct 429 ms 5100 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 27 ms 2284 KB Output is correct
10 Correct 8 ms 876 KB Output is correct
11 Correct 17 ms 1644 KB Output is correct
12 Correct 19 ms 1844 KB Output is correct
13 Correct 23 ms 2028 KB Output is correct
14 Correct 15 ms 1388 KB Output is correct
15 Correct 4 ms 620 KB Output is correct
16 Correct 15 ms 1388 KB Output is correct
17 Correct 38 ms 3180 KB Output is correct
18 Correct 22 ms 1900 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 2 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 512 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 16 ms 1260 KB Output is correct
35 Correct 31 ms 2928 KB Output is correct
36 Correct 42 ms 3436 KB Output is correct
37 Correct 111 ms 3180 KB Output is correct
38 Correct 123 ms 3564 KB Output is correct
39 Correct 33 ms 2776 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 25 ms 1644 KB Output is correct
42 Correct 39 ms 3180 KB Output is correct
43 Correct 5 ms 620 KB Output is correct
44 Correct 25 ms 2156 KB Output is correct
45 Correct 35 ms 2412 KB Output is correct
46 Correct 52 ms 3308 KB Output is correct
47 Correct 13 ms 1408 KB Output is correct
48 Correct 2 ms 492 KB Output is correct
49 Correct 102 ms 2924 KB Output is correct
50 Correct 59 ms 5612 KB Output is correct
51 Correct 75 ms 5120 KB Output is correct
52 Correct 49 ms 5484 KB Output is correct
53 Correct 42 ms 5740 KB Output is correct
54 Correct 115 ms 5484 KB Output is correct
55 Correct 38 ms 5228 KB Output is correct
56 Correct 57 ms 5100 KB Output is correct
57 Correct 43 ms 4972 KB Output is correct
58 Correct 458 ms 5484 KB Output is correct
59 Correct 497 ms 5752 KB Output is correct
60 Correct 449 ms 5356 KB Output is correct
61 Correct 493 ms 5716 KB Output is correct
62 Correct 471 ms 5228 KB Output is correct
63 Correct 503 ms 5996 KB Output is correct
64 Correct 429 ms 5100 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 1 ms 364 KB Output is correct
67 Correct 574 ms 5572 KB Output is correct
68 Correct 553 ms 5484 KB Output is correct
69 Correct 456 ms 4972 KB Output is correct
70 Correct 494 ms 5484 KB Output is correct
71 Correct 511 ms 5332 KB Output is correct
72 Correct 483 ms 5228 KB Output is correct
73 Correct 483 ms 5100 KB Output is correct
74 Correct 524 ms 5612 KB Output is correct
75 Correct 499 ms 5292 KB Output is correct
76 Correct 529 ms 5612 KB Output is correct
77 Correct 106 ms 5996 KB Output is correct
78 Correct 49 ms 5288 KB Output is correct
79 Correct 76 ms 4972 KB Output is correct
80 Correct 80 ms 5356 KB Output is correct
81 Correct 76 ms 4844 KB Output is correct
82 Correct 81 ms 5484 KB Output is correct
83 Correct 57 ms 5100 KB Output is correct
84 Correct 325 ms 5868 KB Output is correct
85 Correct 554 ms 5868 KB Output is correct
86 Correct 2 ms 364 KB Output is correct
87 Correct 1 ms 364 KB Output is correct
88 Correct 581 ms 5996 KB Output is correct
89 Correct 111 ms 1388 KB Output is correct
90 Correct 1 ms 364 KB Output is correct