oj.uz

Submission #241527

# Submission time Handle Problem Language Result Execution time Memory
241527 2020-06-24T11:27:56 Z mhy908 Chessboard (IZhO18_chessboard) C++14
70 / 100
 264 ms 4344 KB 
#include <bits/stdc++.h>
#define eb emplace_back
#define mp make_pair
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define svec(x) sort(x.begin(), x.end())
#define press(x) x.erase(unique(x.begin(), x.end()), x.end())
#define lb(x, v) lower_bound(x.begin(), x.end(), v)
#define ub(x, v) upper_bound(x.begin(), x.end(), v)
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;
typedef pair<LL, LL> pll;
typedef pair<int, LL> pil;
typedef pair<LL, int> pli;
const LL llinf=2000000000000000000;
const LL mod1=1000000007;
const LL mod2=998244353;
const int inf=2000000000;
int n, k;
pair<pii, pii> rect[100010];
LL ans=llinf;
LL query2(int x, int y, int s){
    LL ret=0;
    int tx=x/s, ty=y/s;
    ret+=(LL)tx*ty/2*s*s;
    int rx=x%s, ry=y%s;
    if(tx%2)ret+=(LL)rx*(ty+1)/2*s;
    else ret+=(LL)rx*ty/2*s;
    if(ty%2)ret+=(LL)ry*(tx+1)/2*s;
    else ret+=(LL)ry*tx/2*s;
    if((tx+ty)%2)ret+=(LL)rx*ry;
    return ret;
}
pll query(int stx, int sty, int finx, int finy, int s){
    //LL b=query2(finx, finy, s)-query2(stx-1, finy, s)-query2(finx, sty-1, s)+query2(stx-1, sty-1, s);
    //LL w=(LL)(finx-stx+1)*(finy-sty+1)-b;
    if(((stx-1)/s+(sty-1)/s)%2)return mp(1, 0);
    return mp(0, 1);
}
int main(){
    scanf("%d %d", &n, &k);
    for(int i=1; i<=k; i++){
        scanf("%d %d %d %d", &rect[i].F.F, &rect[i].F.S, &rect[i].S.F, &rect[i].S.S);
    }
    for(int i=1; i<n; i++){
        if(n%i)continue;
        LL w=0, b=0;
        for(int j=1; j<=k; j++){
            pll tmp=query(rect[j].F.F, rect[j].F.S, rect[j].S.F, rect[j].S.S, i);
            b+=tmp.F;
            w+=tmp.S;
        }
        LL temp1=w+(LL)(n/i)*(n/i)/2*i*i-b;
        LL temp2=b+((LL)(n/i)*(n/i)+1)/2*i*i-w;
        ans=min(ans, min(temp1, temp2));
    }
    printf("%lld", ans);
}
/*
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:43:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~~
chessboard.cpp:45:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d %d", &rect[i].F.F, &rect[i].F.S, &rect[i].S.F, &rect[i].S.S);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 4 ms 256 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 1272 KB Output is correct
2 Correct 12 ms 640 KB Output is correct
3 Correct 23 ms 896 KB Output is correct
4 Correct 24 ms 1024 KB Output is correct
5 Correct 32 ms 1280 KB Output is correct
6 Correct 21 ms 896 KB Output is correct
7 Correct 8 ms 384 KB Output is correct
8 Correct 21 ms 896 KB Output is correct
9 Correct 48 ms 1784 KB Output is correct
10 Correct 28 ms 1152 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 16 ms 1152 KB Output is correct
17 Correct 39 ms 3064 KB Output is correct
18 Correct 47 ms 3448 KB Output is correct
19 Correct 77 ms 3064 KB Output is correct
20 Correct 88 ms 3448 KB Output is correct
21 Correct 37 ms 3064 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 26 ms 1664 KB Output is correct
24 Correct 43 ms 3192 KB Output is correct
25 Correct 9 ms 640 KB Output is correct
26 Correct 28 ms 2176 KB Output is correct
27 Correct 36 ms 2432 KB Output is correct
28 Correct 47 ms 3320 KB Output is correct
29 Correct 18 ms 1408 KB Output is correct
30 Correct 6 ms 384 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 1272 KB Output is correct
2 Correct 12 ms 640 KB Output is correct
3 Correct 23 ms 896 KB Output is correct
4 Correct 24 ms 1024 KB Output is correct
5 Correct 32 ms 1280 KB Output is correct
6 Correct 21 ms 896 KB Output is correct
7 Correct 8 ms 384 KB Output is correct
8 Correct 21 ms 896 KB Output is correct
9 Correct 48 ms 1784 KB Output is correct
10 Correct 28 ms 1152 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 16 ms 1152 KB Output is correct
27 Correct 39 ms 3064 KB Output is correct
28 Correct 47 ms 3448 KB Output is correct
29 Correct 77 ms 3064 KB Output is correct
30 Correct 88 ms 3448 KB Output is correct
31 Correct 37 ms 3064 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 26 ms 1664 KB Output is correct
34 Correct 43 ms 3192 KB Output is correct
35 Correct 9 ms 640 KB Output is correct
36 Correct 28 ms 2176 KB Output is correct
37 Correct 36 ms 2432 KB Output is correct
38 Correct 47 ms 3320 KB Output is correct
39 Correct 18 ms 1408 KB Output is correct
40 Correct 6 ms 384 KB Output is correct
41 Correct 77 ms 3576 KB Output is correct
42 Correct 54 ms 4088 KB Output is correct
43 Correct 59 ms 3704 KB Output is correct
44 Correct 52 ms 3964 KB Output is correct
45 Correct 56 ms 4216 KB Output is correct
46 Correct 83 ms 3960 KB Output is correct
47 Correct 47 ms 3704 KB Output is correct
48 Correct 56 ms 3784 KB Output is correct
49 Correct 51 ms 3704 KB Output is correct
50 Correct 241 ms 3960 KB Output is correct
51 Correct 257 ms 4088 KB Output is correct
52 Correct 243 ms 4088 KB Output is correct
53 Correct 261 ms 4216 KB Output is correct
54 Correct 235 ms 3832 KB Output is correct
55 Correct 264 ms 4344 KB Output is correct
56 Correct 229 ms 3704 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 256 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 4 ms 256 KB Output is correct
9 Correct 34 ms 1272 KB Output is correct
10 Correct 12 ms 640 KB Output is correct
11 Correct 23 ms 896 KB Output is correct
12 Correct 24 ms 1024 KB Output is correct
13 Correct 32 ms 1280 KB Output is correct
14 Correct 21 ms 896 KB Output is correct
15 Correct 8 ms 384 KB Output is correct
16 Correct 21 ms 896 KB Output is correct
17 Correct 48 ms 1784 KB Output is correct
18 Correct 28 ms 1152 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 256 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 16 ms 1152 KB Output is correct
35 Correct 39 ms 3064 KB Output is correct
36 Correct 47 ms 3448 KB Output is correct
37 Correct 77 ms 3064 KB Output is correct
38 Correct 88 ms 3448 KB Output is correct
39 Correct 37 ms 3064 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 26 ms 1664 KB Output is correct
42 Correct 43 ms 3192 KB Output is correct
43 Correct 9 ms 640 KB Output is correct
44 Correct 28 ms 2176 KB Output is correct
45 Correct 36 ms 2432 KB Output is correct
46 Correct 47 ms 3320 KB Output is correct
47 Correct 18 ms 1408 KB Output is correct
48 Correct 6 ms 384 KB Output is correct
49 Correct 77 ms 3576 KB Output is correct
50 Correct 54 ms 4088 KB Output is correct
51 Correct 59 ms 3704 KB Output is correct
52 Correct 52 ms 3964 KB Output is correct
53 Correct 56 ms 4216 KB Output is correct
54 Correct 83 ms 3960 KB Output is correct
55 Correct 47 ms 3704 KB Output is correct
56 Correct 56 ms 3784 KB Output is correct
57 Correct 51 ms 3704 KB Output is correct
58 Correct 241 ms 3960 KB Output is correct
59 Correct 257 ms 4088 KB Output is correct
60 Correct 243 ms 4088 KB Output is correct
61 Correct 261 ms 4216 KB Output is correct
62 Correct 235 ms 3832 KB Output is correct
63 Correct 264 ms 4344 KB Output is correct
64 Correct 229 ms 3704 KB Output is correct
65 Correct 4 ms 256 KB Output is correct
66 Incorrect 4 ms 256 KB Output isn't correct
67 Halted 0 ms 0 KB -