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Submission #854159

# Submission time Handle Problem Language Result Execution time Memory
854159 2023-09-26T09:37:26 Z vjudge1 Chessboard (IZhO18_chessboard) C++17
70 / 100
 454 ms 4696 KB 
#include<bits/stdc++.h>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
const int maxn=1e5+9;
struct rect{
int x1,y1,x2,y2;
}a[maxn];
long long cal(int len,bool odd){
if (!odd){
    if (len%2==1)len--;
    return (len-2)/2+1;
}
else {
    if (len%2==0)len--;
    return (len-1)/2+1;
}
}
long long x[2];
long long cal(int l,int r,bool odd){
if (odd){
if (r%2==0)r--;
if (l%2==0)l++;
if (l>r)return 0;
return (r-l)/2+1;
}
else {
if (r%2==1)r--;
if (l%2==1)l++;
if (l>r)return 0;
return (r-l)/2+1;
}
}
pair<long long,long long> solve(int x1, int y1,int i){
memset(x,0,sizeof(x));
if ((x1/i)==(y1/i)){
x[((x1+i-1)/i)%2]+=y1-x1+1;
//cout<<"yay";
}
else {
int len=(x1+i-1)/i;
//cerr<<len<<'\n';
x[len%2]+=(len)*i-x1+1;
x1=(len)*i+1;
x[((y1+i-1)/i)%2]+=(y1)%i;
y1-=(y1%i);
//cout<<x[0]<<" "<<y1<<'\n';
if (x1>y1)return {x[0],x[1]};
int l1=((x1+i-1)/i),l2=y1/i;
x[0]+=1ll*cal(l1,l2,0)*i;
x[1]+=1ll*cal(l1,l2,1)*i;
}
return {x[0],x[1]};
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("temp.INP","r",stdin);
    //freopen("temp.OUT","w",stdout);
    long long n;
    int k;
    cin>>n>>k;
    for1(i,1,k)cin>>a[i].x1>>a[i].y1>>a[i].x2>>a[i].y2;
    long long ans=n*n;
    for1(i,1,n-1){
    if (n%i!=0)continue;
    long long len=n/i;
    long long sum=cal(len,1)*cal(len,1)*i*i+cal(len,0)*cal(len,0)*i*i;
    long long sum2=cal(len,1)*cal(len,0)*i*i+cal(len,0)*cal(len,1)*i*i;
    for1(j,1,k){
    int x1=a[j].x1,y1=a[j].y1,x2=a[j].x2,y2=a[j].y2;
    pair<long long,long long>cordx=solve(x1,x2,i),cordy=solve(y1,y2,i);
    sum-=cordx.fi*cordy.fi;
    sum-=cordx.se*cordy.se;
    sum+=cordx.fi*cordy.se;
    sum+=cordx.se*cordy.fi;

    sum2+=cordx.fi*cordy.fi;
    sum2+=cordx.se*cordy.se;
    sum2-=cordx.fi*cordy.se;
    sum2-=cordx.se*cordy.fi;
    }
    ans=min(ans,sum);
    ans=min(ans,sum2);
    }
    cout<<ans;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 2900 KB Output is correct
2 Correct 5 ms 856 KB Output is correct
3 Correct 11 ms 1880 KB Output is correct
4 Correct 14 ms 1884 KB Output is correct
5 Correct 16 ms 2392 KB Output is correct
6 Correct 10 ms 1624 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 10 ms 1624 KB Output is correct
9 Correct 27 ms 3920 KB Output is correct
10 Correct 14 ms 2528 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 500 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 500 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 8 ms 1112 KB Output is correct
17 Correct 20 ms 2908 KB Output is correct
18 Correct 32 ms 3420 KB Output is correct
19 Correct 91 ms 3244 KB Output is correct
20 Correct 97 ms 3416 KB Output is correct
21 Correct 19 ms 2896 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 18 ms 1628 KB Output is correct
24 Correct 28 ms 3220 KB Output is correct
25 Correct 5 ms 600 KB Output is correct
26 Correct 16 ms 2136 KB Output is correct
27 Correct 24 ms 2392 KB Output is correct
28 Correct 28 ms 3340 KB Output is correct
29 Correct 10 ms 1368 KB Output is correct
30 Correct 1 ms 344 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 2900 KB Output is correct
2 Correct 5 ms 856 KB Output is correct
3 Correct 11 ms 1880 KB Output is correct
4 Correct 14 ms 1884 KB Output is correct
5 Correct 16 ms 2392 KB Output is correct
6 Correct 10 ms 1624 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 10 ms 1624 KB Output is correct
9 Correct 27 ms 3920 KB Output is correct
10 Correct 14 ms 2528 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 500 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 8 ms 1112 KB Output is correct
27 Correct 20 ms 2908 KB Output is correct
28 Correct 32 ms 3420 KB Output is correct
29 Correct 91 ms 3244 KB Output is correct
30 Correct 97 ms 3416 KB Output is correct
31 Correct 19 ms 2896 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 18 ms 1628 KB Output is correct
34 Correct 28 ms 3220 KB Output is correct
35 Correct 5 ms 600 KB Output is correct
36 Correct 16 ms 2136 KB Output is correct
37 Correct 24 ms 2392 KB Output is correct
38 Correct 28 ms 3340 KB Output is correct
39 Correct 10 ms 1368 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 81 ms 3672 KB Output is correct
42 Correct 32 ms 3928 KB Output is correct
43 Correct 51 ms 3736 KB Output is correct
44 Correct 33 ms 4040 KB Output is correct
45 Correct 27 ms 4224 KB Output is correct
46 Correct 90 ms 4116 KB Output is correct
47 Correct 25 ms 3664 KB Output is correct
48 Correct 41 ms 3640 KB Output is correct
49 Correct 29 ms 3664 KB Output is correct
50 Correct 390 ms 3928 KB Output is correct
51 Correct 417 ms 4304 KB Output is correct
52 Correct 385 ms 4176 KB Output is correct
53 Correct 411 ms 4176 KB Output is correct
54 Correct 381 ms 3924 KB Output is correct
55 Correct 429 ms 4696 KB Output is correct
56 Correct 371 ms 3852 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 18 ms 2900 KB Output is correct
10 Correct 5 ms 856 KB Output is correct
11 Correct 11 ms 1880 KB Output is correct
12 Correct 14 ms 1884 KB Output is correct
13 Correct 16 ms 2392 KB Output is correct
14 Correct 10 ms 1624 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 10 ms 1624 KB Output is correct
17 Correct 27 ms 3920 KB Output is correct
18 Correct 14 ms 2528 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 500 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 8 ms 1112 KB Output is correct
35 Correct 20 ms 2908 KB Output is correct
36 Correct 32 ms 3420 KB Output is correct
37 Correct 91 ms 3244 KB Output is correct
38 Correct 97 ms 3416 KB Output is correct
39 Correct 19 ms 2896 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 18 ms 1628 KB Output is correct
42 Correct 28 ms 3220 KB Output is correct
43 Correct 5 ms 600 KB Output is correct
44 Correct 16 ms 2136 KB Output is correct
45 Correct 24 ms 2392 KB Output is correct
46 Correct 28 ms 3340 KB Output is correct
47 Correct 10 ms 1368 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 81 ms 3672 KB Output is correct
50 Correct 32 ms 3928 KB Output is correct
51 Correct 51 ms 3736 KB Output is correct
52 Correct 33 ms 4040 KB Output is correct
53 Correct 27 ms 4224 KB Output is correct
54 Correct 90 ms 4116 KB Output is correct
55 Correct 25 ms 3664 KB Output is correct
56 Correct 41 ms 3640 KB Output is correct
57 Correct 29 ms 3664 KB Output is correct
58 Correct 390 ms 3928 KB Output is correct
59 Correct 417 ms 4304 KB Output is correct
60 Correct 385 ms 4176 KB Output is correct
61 Correct 411 ms 4176 KB Output is correct
62 Correct 381 ms 3924 KB Output is correct
63 Correct 429 ms 4696 KB Output is correct
64 Correct 371 ms 3852 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 0 ms 344 KB Output is correct
67 Incorrect 454 ms 4132 KB Output isn't correct
68 Halted 0 ms 0 KB -