oj.uz

Submission #334387

# Submission time Handle Problem Language Result Execution time Memory
334387 2020-12-09T05:46:50 Z juggernaut Chessboard (IZhO18_chessboard) C++14
70 / 100
 202 ms 4108 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
struct Rect{
    ll x,y,x2,y2;
    void _minus(){
        x--,y--,x2--,y2--;
    }
}rect[100005];
ll n,m;
ll solve(ll side){
    ll sz=n/side;
    ll ans=side*side*((sz*sz+1)>>1);
    for(ll i=0;i<m;i++){
        ll block_x=rect[i].x/side;
        ll block_y=rect[i].y/side;
        if((block_x+block_y)&1)ans++;
        else ans--;
    }
    return min(ans,n*n-ans);
}
int main(){
    scanf("%lld%lld",&n,&m);
    for(ll i=0;i<m;i++)scanf("%lld%lld%lld%lld",&rect[i].x,&rect[i].y,&rect[i].x2,&rect[i].y2),rect[i]._minus();
    ll res=solve(1);
    for(ll i=2;i*i<=n;i++)if(n%i==0)res=min(res,min(solve(i),solve(n/i)));
    printf("%lld",res);
}

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 |     scanf("%lld%lld",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
chessboard.cpp:24:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   24 |     for(ll i=0;i<m;i++)scanf("%lld%lld%lld%lld",&rect[i].x,&rect[i].y,&rect[i].x2,&rect[i].y2),rect[i]._minus();
      |                        ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 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 1 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

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 2924 KB Output is correct
2 Correct 7 ms 1132 KB Output is correct
3 Correct 16 ms 2284 KB Output is correct
4 Correct 18 ms 2432 KB Output is correct
5 Correct 24 ms 2796 KB Output is correct
6 Correct 14 ms 2156 KB Output is correct
7 Correct 4 ms 748 KB Output is correct
8 Correct 15 ms 2060 KB Output is correct
9 Correct 36 ms 3948 KB Output is correct
10 Correct 20 ms 2540 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 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 1 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 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 1 ms 364 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 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 1 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 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 1 ms 364 KB Output is correct
16 Correct 10 ms 1516 KB Output is correct
17 Correct 29 ms 3308 KB Output is correct
18 Correct 36 ms 3692 KB Output is correct
19 Correct 57 ms 3436 KB Output is correct
20 Correct 65 ms 3840 KB Output is correct
21 Correct 28 ms 3180 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 18 ms 2028 KB Output is correct
24 Correct 33 ms 3436 KB Output is correct
25 Correct 4 ms 748 KB Output is correct
26 Correct 23 ms 2412 KB Output is correct
27 Correct 27 ms 2796 KB Output is correct
28 Correct 35 ms 3692 KB Output is correct
29 Correct 13 ms 1644 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 25 ms 2924 KB Output is correct
2 Correct 7 ms 1132 KB Output is correct
3 Correct 16 ms 2284 KB Output is correct
4 Correct 18 ms 2432 KB Output is correct
5 Correct 24 ms 2796 KB Output is correct
6 Correct 14 ms 2156 KB Output is correct
7 Correct 4 ms 748 KB Output is correct
8 Correct 15 ms 2060 KB Output is correct
9 Correct 36 ms 3948 KB Output is correct
10 Correct 20 ms 2540 KB Output is correct
11 Correct 1 ms 384 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 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 364 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 10 ms 1516 KB Output is correct
27 Correct 29 ms 3308 KB Output is correct
28 Correct 36 ms 3692 KB Output is correct
29 Correct 57 ms 3436 KB Output is correct
30 Correct 65 ms 3840 KB Output is correct
31 Correct 28 ms 3180 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 18 ms 2028 KB Output is correct
34 Correct 33 ms 3436 KB Output is correct
35 Correct 4 ms 748 KB Output is correct
36 Correct 23 ms 2412 KB Output is correct
37 Correct 27 ms 2796 KB Output is correct
38 Correct 35 ms 3692 KB Output is correct
39 Correct 13 ms 1644 KB Output is correct
40 Correct 2 ms 492 KB Output is correct
41 Correct 55 ms 3564 KB Output is correct
42 Correct 39 ms 3948 KB Output is correct
43 Correct 43 ms 3692 KB Output is correct
44 Correct 38 ms 3948 KB Output is correct
45 Correct 38 ms 4076 KB Output is correct
46 Correct 64 ms 3948 KB Output is correct
47 Correct 33 ms 3820 KB Output is correct
48 Correct 42 ms 3692 KB Output is correct
49 Correct 37 ms 3692 KB Output is correct
50 Correct 183 ms 3968 KB Output is correct
51 Correct 195 ms 4108 KB Output is correct
52 Correct 181 ms 3820 KB Output is correct
53 Correct 195 ms 4076 KB Output is correct
54 Correct 179 ms 3948 KB Output is correct
55 Correct 202 ms 4076 KB Output is correct
56 Correct 177 ms 3692 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 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 1 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 25 ms 2924 KB Output is correct
10 Correct 7 ms 1132 KB Output is correct
11 Correct 16 ms 2284 KB Output is correct
12 Correct 18 ms 2432 KB Output is correct
13 Correct 24 ms 2796 KB Output is correct
14 Correct 14 ms 2156 KB Output is correct
15 Correct 4 ms 748 KB Output is correct
16 Correct 15 ms 2060 KB Output is correct
17 Correct 36 ms 3948 KB Output is correct
18 Correct 20 ms 2540 KB Output is correct
19 Correct 1 ms 384 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 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 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 364 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 10 ms 1516 KB Output is correct
35 Correct 29 ms 3308 KB Output is correct
36 Correct 36 ms 3692 KB Output is correct
37 Correct 57 ms 3436 KB Output is correct
38 Correct 65 ms 3840 KB Output is correct
39 Correct 28 ms 3180 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 18 ms 2028 KB Output is correct
42 Correct 33 ms 3436 KB Output is correct
43 Correct 4 ms 748 KB Output is correct
44 Correct 23 ms 2412 KB Output is correct
45 Correct 27 ms 2796 KB Output is correct
46 Correct 35 ms 3692 KB Output is correct
47 Correct 13 ms 1644 KB Output is correct
48 Correct 2 ms 492 KB Output is correct
49 Correct 55 ms 3564 KB Output is correct
50 Correct 39 ms 3948 KB Output is correct
51 Correct 43 ms 3692 KB Output is correct
52 Correct 38 ms 3948 KB Output is correct
53 Correct 38 ms 4076 KB Output is correct
54 Correct 64 ms 3948 KB Output is correct
55 Correct 33 ms 3820 KB Output is correct
56 Correct 42 ms 3692 KB Output is correct
57 Correct 37 ms 3692 KB Output is correct
58 Correct 183 ms 3968 KB Output is correct
59 Correct 195 ms 4108 KB Output is correct
60 Correct 181 ms 3820 KB Output is correct
61 Correct 195 ms 4076 KB Output is correct
62 Correct 179 ms 3948 KB Output is correct
63 Correct 202 ms 4076 KB Output is correct
64 Correct 177 ms 3692 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Incorrect 1 ms 364 KB Output isn't correct
67 Halted 0 ms 0 KB -