oj.uz

Submission #334375

# Submission time Handle Problem Language Result Execution time Memory
334375 2020-12-09T05:26:34 Z juggernaut Chessboard (IZhO18_chessboard) C++14
70 / 100
 471 ms 3564 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,bool color){
    ll sz=n/side;
    if(color){
        ll wh=0,bl=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)wh++;
            else bl--;
        }
        return wh+bl;
    }else{
        ll wh=0,bl=side*side*((sz*sz)>>1);
        for(ll i=0;i<m;i++){
            bool cl;
            ll block_x=rect[i].x/side;
            ll block_y=rect[i].y/side;
            if((block_x+block_y)&1)bl--;
            else wh++;
        }
        return wh+bl;
    }
}
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=min(solve(1,0),solve(1,1));
    for(ll i=2;i*i<=n;i++)if(n%i==0)res=min(res,min(min(solve(i,0),solve(n/i,0)),min(solve(i,1),solve(n/i,1))));
    printf("%lld",res);
}

Compilation message

chessboard.cpp: In function 'll solve(ll, bool)':
chessboard.cpp:25:18: warning: unused variable 'cl' [-Wunused-variable]
   25 |             bool cl;
      |                  ^~
chessboard.cpp: In function 'int main()':
chessboard.cpp:35:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   35 |     scanf("%lld%lld",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
chessboard.cpp:36:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   36 |     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 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 512 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 25 ms 2284 KB Output is correct
2 Correct 7 ms 876 KB Output is correct
3 Correct 16 ms 1516 KB Output is correct
4 Correct 18 ms 1772 KB Output is correct
5 Correct 23 ms 2028 KB Output is correct
6 Correct 15 ms 1516 KB Output is correct
7 Correct 4 ms 492 KB Output is correct
8 Correct 15 ms 1388 KB Output is correct
9 Correct 52 ms 3180 KB Output is correct
10 Correct 21 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 2 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 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 2 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 12 ms 1132 KB Output is correct
17 Correct 30 ms 2924 KB Output is correct
18 Correct 40 ms 3436 KB Output is correct
19 Correct 103 ms 3200 KB Output is correct
20 Correct 115 ms 3436 KB Output is correct
21 Correct 28 ms 2796 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 30 ms 1644 KB Output is correct
24 Correct 38 ms 3196 KB Output is correct
25 Correct 5 ms 620 KB Output is correct
26 Correct 23 ms 2028 KB Output is correct
27 Correct 37 ms 2412 KB Output is correct
28 Correct 42 ms 3264 KB Output is correct
29 Correct 12 ms 1388 KB Output is correct
30 Correct 2 ms 364 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 2284 KB Output is correct
2 Correct 7 ms 876 KB Output is correct
3 Correct 16 ms 1516 KB Output is correct
4 Correct 18 ms 1772 KB Output is correct
5 Correct 23 ms 2028 KB Output is correct
6 Correct 15 ms 1516 KB Output is correct
7 Correct 4 ms 492 KB Output is correct
8 Correct 15 ms 1388 KB Output is correct
9 Correct 52 ms 3180 KB Output is correct
10 Correct 21 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 2 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 12 ms 1132 KB Output is correct
27 Correct 30 ms 2924 KB Output is correct
28 Correct 40 ms 3436 KB Output is correct
29 Correct 103 ms 3200 KB Output is correct
30 Correct 115 ms 3436 KB Output is correct
31 Correct 28 ms 2796 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 30 ms 1644 KB Output is correct
34 Correct 38 ms 3196 KB Output is correct
35 Correct 5 ms 620 KB Output is correct
36 Correct 23 ms 2028 KB Output is correct
37 Correct 37 ms 2412 KB Output is correct
38 Correct 42 ms 3264 KB Output is correct
39 Correct 12 ms 1388 KB Output is correct
40 Correct 2 ms 364 KB Output is correct
41 Correct 94 ms 2968 KB Output is correct
42 Correct 44 ms 3308 KB Output is correct
43 Correct 62 ms 2944 KB Output is correct
44 Correct 42 ms 3180 KB Output is correct
45 Correct 40 ms 3436 KB Output is correct
46 Correct 108 ms 3180 KB Output is correct
47 Correct 34 ms 3052 KB Output is correct
48 Correct 53 ms 3052 KB Output is correct
49 Correct 40 ms 2924 KB Output is correct
50 Correct 423 ms 3308 KB Output is correct
51 Correct 454 ms 3436 KB Output is correct
52 Correct 424 ms 3180 KB Output is correct
53 Correct 448 ms 3308 KB Output is correct
54 Correct 417 ms 3308 KB Output is correct
55 Correct 471 ms 3564 KB Output is correct
56 Correct 406 ms 3180 KB Output is correct

Subtask #6
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 512 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 25 ms 2284 KB Output is correct
10 Correct 7 ms 876 KB Output is correct
11 Correct 16 ms 1516 KB Output is correct
12 Correct 18 ms 1772 KB Output is correct
13 Correct 23 ms 2028 KB Output is correct
14 Correct 15 ms 1516 KB Output is correct
15 Correct 4 ms 492 KB Output is correct
16 Correct 15 ms 1388 KB Output is correct
17 Correct 52 ms 3180 KB Output is correct
18 Correct 21 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 2 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 12 ms 1132 KB Output is correct
35 Correct 30 ms 2924 KB Output is correct
36 Correct 40 ms 3436 KB Output is correct
37 Correct 103 ms 3200 KB Output is correct
38 Correct 115 ms 3436 KB Output is correct
39 Correct 28 ms 2796 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 30 ms 1644 KB Output is correct
42 Correct 38 ms 3196 KB Output is correct
43 Correct 5 ms 620 KB Output is correct
44 Correct 23 ms 2028 KB Output is correct
45 Correct 37 ms 2412 KB Output is correct
46 Correct 42 ms 3264 KB Output is correct
47 Correct 12 ms 1388 KB Output is correct
48 Correct 2 ms 364 KB Output is correct
49 Correct 94 ms 2968 KB Output is correct
50 Correct 44 ms 3308 KB Output is correct
51 Correct 62 ms 2944 KB Output is correct
52 Correct 42 ms 3180 KB Output is correct
53 Correct 40 ms 3436 KB Output is correct
54 Correct 108 ms 3180 KB Output is correct
55 Correct 34 ms 3052 KB Output is correct
56 Correct 53 ms 3052 KB Output is correct
57 Correct 40 ms 2924 KB Output is correct
58 Correct 423 ms 3308 KB Output is correct
59 Correct 454 ms 3436 KB Output is correct
60 Correct 424 ms 3180 KB Output is correct
61 Correct 448 ms 3308 KB Output is correct
62 Correct 417 ms 3308 KB Output is correct
63 Correct 471 ms 3564 KB Output is correct
64 Correct 406 ms 3180 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 -