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Submission #347003

# Submission time Handle Problem Language Result Execution time Memory
347003 2021-01-11T13:50:09 Z andrii Chessboard (IZhO18_chessboard) C++17
70 / 100
 974 ms 13164 KB 
// -- //
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#define pll pair<ll, ll>
#define ppll pair<pll, pll>
#define x first
#define y second
using namespace std;
typedef long long rll;
typedef int ll;
const ll N = 1e5+228;
ppll a[N];
vector<pll> add[N], del[N];
ll n, k;
rll res;
inline void ch(ll m, ll bln) __attribute__((always_inline));
inline void ch(ll m, ll bln){
    rll bob=0, bow=0;
    rll no[2]={0};
    for(ll i = 1;i<=n;i++){
        for(auto &j : add[i]){
            ll s = j.x, e = j.y;
            --s, e--;
            ll bs = s/m, be = e/m;
            rll bse = ((rll)bs+1)*m-1;
            if(bs==be) no[bs&1] += e-s+1;
            else if(bs+1==be){
                no[bs&1] += bse-s+1;
                no[be&1] += e-bse;
            }else{
                no[bs&1] += bse-s+1;
                no[be&1] += e-bse;
                bs++, be--;
                ll kb = (be-bs+1)/2;
                no[bs&1] += ((rll)(be-bs+1-kb))*m;
                no[be&1] += ((rll)kb)*m;
            }
        }
        if(((i-1)/m)&1){
            bow+=no[0], bob+=no[1];
        }else{
            bob+=no[0], bow+=no[1];
        }
        for(auto &j : del[i]){
            ll s = j.x, e = j.y;
            --s, e--;
            ll bs = s/m, be = e/m;
            rll bse = ((rll)bs+1)*m-1;
            if(bs==be) no[bs&1] -= e-s+1;
            else if(bs+1==be){
                no[bs&1] -= bse-s+1;
                no[be&1] -= e-bse;
            }else{
                no[bs&1] -= bse-s+1;
                no[be&1] -= e-bse;
                bs++, be--;
                ll kb = (be-bs+1)/2;
                no[bs&1] -= ((rll)(be-bs+1-kb))*m;
                no[be&1] -= ((rll)kb)*m;
            }
        }
    }
    rll mbb = 1LL*((rll)(bln>>1))*((rll)m)*((rll)n)+1LL*((rll)((bln&1) ? (bln+1)>>1 : 0))*((rll)m)*((rll)m);
    rll v1 = (mbb-bob)+bow;
    rll v2 = bob+(((rll)n*n)-mbb-bow);
    if(v1<res) res=v1;
    if(v2<res) res=v2;
}
signed main(){
	cin.tie(0);cout.tie(0);ios_base::sync_with_stdio(0);
    cin >> n >> k;
    for(ll i =0 ;i<k;i++){
        cin >> a[i].x.x >> a[i].x.y >> a[i].y.x >> a[i].y.y;
        add[a[i].x.y].push_back({a[i].x.x, a[i].y.x});
        del[a[i].y.y].push_back({a[i].x.x, a[i].y.x});
    }
    res=(rll)n*n;
    for(ll i = 1;i*i<=n;i++){
        ll k = n/i;
        if(n-k*i) continue;
        ch(i, k);
        if(i>1) ch(k, i);
    }
    cout<<res;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 10220 KB Output is correct
2 Correct 13 ms 6380 KB Output is correct
3 Correct 41 ms 8684 KB Output is correct
4 Correct 32 ms 8044 KB Output is correct
5 Correct 47 ms 9580 KB Output is correct
6 Correct 27 ms 8044 KB Output is correct
7 Correct 9 ms 5740 KB Output is correct
8 Correct 41 ms 8044 KB Output is correct
9 Correct 63 ms 11628 KB Output is correct
10 Correct 37 ms 8940 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 4 ms 5120 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 5 ms 5100 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 4 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 4 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 4 ms 5100 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 4 ms 5120 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 5 ms 5100 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 4 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 4 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 4 ms 5100 KB Output is correct
16 Correct 16 ms 6636 KB Output is correct
17 Correct 39 ms 10092 KB Output is correct
18 Correct 50 ms 10476 KB Output is correct
19 Correct 98 ms 10080 KB Output is correct
20 Correct 105 ms 10348 KB Output is correct
21 Correct 37 ms 9836 KB Output is correct
22 Correct 4 ms 5100 KB Output is correct
23 Correct 28 ms 7652 KB Output is correct
24 Correct 46 ms 10212 KB Output is correct
25 Correct 9 ms 5612 KB Output is correct
26 Correct 30 ms 8300 KB Output is correct
27 Correct 38 ms 9196 KB Output is correct
28 Correct 47 ms 10220 KB Output is correct
29 Correct 21 ms 7020 KB Output is correct
30 Correct 5 ms 5228 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 10220 KB Output is correct
2 Correct 13 ms 6380 KB Output is correct
3 Correct 41 ms 8684 KB Output is correct
4 Correct 32 ms 8044 KB Output is correct
5 Correct 47 ms 9580 KB Output is correct
6 Correct 27 ms 8044 KB Output is correct
7 Correct 9 ms 5740 KB Output is correct
8 Correct 41 ms 8044 KB Output is correct
9 Correct 63 ms 11628 KB Output is correct
10 Correct 37 ms 8940 KB Output is correct
11 Correct 5 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 4 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 4 ms 5120 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 4 ms 5100 KB Output is correct
18 Correct 4 ms 5100 KB Output is correct
19 Correct 5 ms 5100 KB Output is correct
20 Correct 4 ms 5100 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct
22 Correct 4 ms 5100 KB Output is correct
23 Correct 4 ms 5100 KB Output is correct
24 Correct 4 ms 5100 KB Output is correct
25 Correct 4 ms 5100 KB Output is correct
26 Correct 16 ms 6636 KB Output is correct
27 Correct 39 ms 10092 KB Output is correct
28 Correct 50 ms 10476 KB Output is correct
29 Correct 98 ms 10080 KB Output is correct
30 Correct 105 ms 10348 KB Output is correct
31 Correct 37 ms 9836 KB Output is correct
32 Correct 4 ms 5100 KB Output is correct
33 Correct 28 ms 7652 KB Output is correct
34 Correct 46 ms 10212 KB Output is correct
35 Correct 9 ms 5612 KB Output is correct
36 Correct 30 ms 8300 KB Output is correct
37 Correct 38 ms 9196 KB Output is correct
38 Correct 47 ms 10220 KB Output is correct
39 Correct 21 ms 7020 KB Output is correct
40 Correct 5 ms 5228 KB Output is correct
41 Correct 203 ms 12140 KB Output is correct
42 Correct 93 ms 12780 KB Output is correct
43 Correct 126 ms 12012 KB Output is correct
44 Correct 110 ms 12652 KB Output is correct
45 Correct 83 ms 13164 KB Output is correct
46 Correct 221 ms 12780 KB Output is correct
47 Correct 81 ms 12268 KB Output is correct
48 Correct 120 ms 12396 KB Output is correct
49 Correct 86 ms 12268 KB Output is correct
50 Correct 848 ms 12524 KB Output is correct
51 Correct 974 ms 12780 KB Output is correct
52 Correct 805 ms 12396 KB Output is correct
53 Correct 910 ms 12908 KB Output is correct
54 Correct 767 ms 12396 KB Output is correct
55 Correct 880 ms 13036 KB Output is correct
56 Correct 788 ms 12140 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 54 ms 10220 KB Output is correct
10 Correct 13 ms 6380 KB Output is correct
11 Correct 41 ms 8684 KB Output is correct
12 Correct 32 ms 8044 KB Output is correct
13 Correct 47 ms 9580 KB Output is correct
14 Correct 27 ms 8044 KB Output is correct
15 Correct 9 ms 5740 KB Output is correct
16 Correct 41 ms 8044 KB Output is correct
17 Correct 63 ms 11628 KB Output is correct
18 Correct 37 ms 8940 KB Output is correct
19 Correct 5 ms 5100 KB Output is correct
20 Correct 4 ms 5100 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct
22 Correct 4 ms 5100 KB Output is correct
23 Correct 4 ms 5120 KB Output is correct
24 Correct 4 ms 5100 KB Output is correct
25 Correct 4 ms 5100 KB Output is correct
26 Correct 4 ms 5100 KB Output is correct
27 Correct 5 ms 5100 KB Output is correct
28 Correct 4 ms 5100 KB Output is correct
29 Correct 4 ms 5100 KB Output is correct
30 Correct 4 ms 5100 KB Output is correct
31 Correct 4 ms 5100 KB Output is correct
32 Correct 4 ms 5100 KB Output is correct
33 Correct 4 ms 5100 KB Output is correct
34 Correct 16 ms 6636 KB Output is correct
35 Correct 39 ms 10092 KB Output is correct
36 Correct 50 ms 10476 KB Output is correct
37 Correct 98 ms 10080 KB Output is correct
38 Correct 105 ms 10348 KB Output is correct
39 Correct 37 ms 9836 KB Output is correct
40 Correct 4 ms 5100 KB Output is correct
41 Correct 28 ms 7652 KB Output is correct
42 Correct 46 ms 10212 KB Output is correct
43 Correct 9 ms 5612 KB Output is correct
44 Correct 30 ms 8300 KB Output is correct
45 Correct 38 ms 9196 KB Output is correct
46 Correct 47 ms 10220 KB Output is correct
47 Correct 21 ms 7020 KB Output is correct
48 Correct 5 ms 5228 KB Output is correct
49 Correct 203 ms 12140 KB Output is correct
50 Correct 93 ms 12780 KB Output is correct
51 Correct 126 ms 12012 KB Output is correct
52 Correct 110 ms 12652 KB Output is correct
53 Correct 83 ms 13164 KB Output is correct
54 Correct 221 ms 12780 KB Output is correct
55 Correct 81 ms 12268 KB Output is correct
56 Correct 120 ms 12396 KB Output is correct
57 Correct 86 ms 12268 KB Output is correct
58 Correct 848 ms 12524 KB Output is correct
59 Correct 974 ms 12780 KB Output is correct
60 Correct 805 ms 12396 KB Output is correct
61 Correct 910 ms 12908 KB Output is correct
62 Correct 767 ms 12396 KB Output is correct
63 Correct 880 ms 13036 KB Output is correct
64 Correct 788 ms 12140 KB Output is correct
65 Correct 4 ms 5100 KB Output is correct
66 Correct 3 ms 5100 KB Output is correct
67 Incorrect 721 ms 12012 KB Output isn't correct
68 Halted 0 ms 0 KB -