oj.uz

Submission #334374

# Submission time Handle Problem Language Result Execution time Memory
334374 2020-12-09T05:25:18 Z juggernaut Chessboard (IZhO18_chessboard) C++14
70 / 100
 484 ms 3564 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
typedef long long ll;
struct Rect{
    int x,y,x2,y2;
    void _minus(){
        x--,y--,x2--,y2--;
    }
}rect[100005];
int n,m;
ll solve(int side,bool color){
    int sz=n/side;
    if(color){
        ll wh=0,bl=side*side*((sz*sz+1)>>1);
        for(int i=0;i<m;i++){
            int block_x=rect[i].x/side;
            int 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(int i=0;i<m;i++){
            bool cl;
            int block_x=rect[i].x/side;
            int block_y=rect[i].y/side;
            if((block_x+block_y)&1)bl--;
            else wh++;
        }
        return wh+bl;
    }
}
main(){
    scanf("%lld%lld",&n,&m);
    for(int 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(int 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(long long int, bool)':
chessboard.cpp:26:18: warning: unused variable 'cl' [-Wunused-variable]
   26 |             bool cl;
      |                  ^~
chessboard.cpp: At global scope:
chessboard.cpp:35:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   35 | main(){
      |      ^
chessboard.cpp: In function 'int main()':
chessboard.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   36 |     scanf("%lld%lld",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
chessboard.cpp:37:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   37 |     for(int 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 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 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 26 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 14 ms 1388 KB Output is correct
7 Correct 3 ms 492 KB Output is correct
8 Correct 14 ms 1388 KB Output is correct
9 Correct 47 ms 3200 KB Output is correct
10 Correct 20 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 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 268 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 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 268 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 33 ms 2924 KB Output is correct
18 Correct 42 ms 3564 KB Output is correct
19 Correct 104 ms 3052 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 23 ms 1664 KB Output is correct
24 Correct 37 ms 3192 KB Output is correct
25 Correct 5 ms 620 KB Output is correct
26 Correct 28 ms 2156 KB Output is correct
27 Correct 32 ms 2412 KB Output is correct
28 Correct 41 ms 3308 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 26 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 14 ms 1388 KB Output is correct
7 Correct 3 ms 492 KB Output is correct
8 Correct 14 ms 1388 KB Output is correct
9 Correct 47 ms 3200 KB Output is correct
10 Correct 20 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 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 268 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 33 ms 2924 KB Output is correct
28 Correct 42 ms 3564 KB Output is correct
29 Correct 104 ms 3052 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 23 ms 1664 KB Output is correct
34 Correct 37 ms 3192 KB Output is correct
35 Correct 5 ms 620 KB Output is correct
36 Correct 28 ms 2156 KB Output is correct
37 Correct 32 ms 2412 KB Output is correct
38 Correct 41 ms 3308 KB Output is correct
39 Correct 12 ms 1388 KB Output is correct
40 Correct 2 ms 364 KB Output is correct
41 Correct 95 ms 2968 KB Output is correct
42 Correct 44 ms 3308 KB Output is correct
43 Correct 62 ms 3052 KB Output is correct
44 Correct 54 ms 3180 KB Output is correct
45 Correct 51 ms 3436 KB Output is correct
46 Correct 106 ms 3180 KB Output is correct
47 Correct 34 ms 3052 KB Output is correct
48 Correct 52 ms 3180 KB Output is correct
49 Correct 47 ms 3052 KB Output is correct
50 Correct 425 ms 3216 KB Output is correct
51 Correct 458 ms 3308 KB Output is correct
52 Correct 420 ms 3308 KB Output is correct
53 Correct 454 ms 3436 KB Output is correct
54 Correct 417 ms 3180 KB Output is correct
55 Correct 484 ms 3500 KB Output is correct
56 Correct 421 ms 3072 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 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 26 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 14 ms 1388 KB Output is correct
15 Correct 3 ms 492 KB Output is correct
16 Correct 14 ms 1388 KB Output is correct
17 Correct 47 ms 3200 KB Output is correct
18 Correct 20 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 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 268 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 33 ms 2924 KB Output is correct
36 Correct 42 ms 3564 KB Output is correct
37 Correct 104 ms 3052 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 23 ms 1664 KB Output is correct
42 Correct 37 ms 3192 KB Output is correct
43 Correct 5 ms 620 KB Output is correct
44 Correct 28 ms 2156 KB Output is correct
45 Correct 32 ms 2412 KB Output is correct
46 Correct 41 ms 3308 KB Output is correct
47 Correct 12 ms 1388 KB Output is correct
48 Correct 2 ms 364 KB Output is correct
49 Correct 95 ms 2968 KB Output is correct
50 Correct 44 ms 3308 KB Output is correct
51 Correct 62 ms 3052 KB Output is correct
52 Correct 54 ms 3180 KB Output is correct
53 Correct 51 ms 3436 KB Output is correct
54 Correct 106 ms 3180 KB Output is correct
55 Correct 34 ms 3052 KB Output is correct
56 Correct 52 ms 3180 KB Output is correct
57 Correct 47 ms 3052 KB Output is correct
58 Correct 425 ms 3216 KB Output is correct
59 Correct 458 ms 3308 KB Output is correct
60 Correct 420 ms 3308 KB Output is correct
61 Correct 454 ms 3436 KB Output is correct
62 Correct 417 ms 3180 KB Output is correct
63 Correct 484 ms 3500 KB Output is correct
64 Correct 421 ms 3072 KB Output is correct
65 Correct 0 ms 364 KB Output is correct
66 Incorrect 0 ms 364 KB Output isn't correct
67 Halted 0 ms 0 KB -