답안 #40565 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
40565	2018-02-05T01:42:35 Z	Just_Solve_The_Problem	Chessboard (IZhO18_chessboard)	C++11	100 / 100	1409 ms	3820 KB

chessboard

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define whatis(x) cout << #x << " is -> " << x << endl;

const ll linf = (ll)1e18 + 7;
const ll N = (ll)1e5 + 7;

ll x1[N], YY[N], x2[N], y2[N];

ll n;
ll k;
ll ans = linf;

inline ll gety(ll y,ll len){
	if(y <= 0) return 0;
	ll res = (y / len) / 2 * len;
	if((y / len) & 1) res += y % len + 1;
	return res;
}

inline ll getx(ll x,ll len){
	if(x <= 0) return 0;
	ll res = (x / len) / 2 * len;
	if((x / len) & 1) res += x % len + 1;
	return res;
}

void calc(ll len) {
  ll odd = 0, even = 0;
	for(ll i = 1,xx,yy; i <= k; i++){
		ll o1 = gety(y2[i], len) - gety(YY[i] - 1, len);
		ll e1 = (y2[i] - YY[i] + 1) - o1;
		ll o2 = getx(x2[i], len) -  getx(x1[i] - 1, len);
		ll e2 = (x2[i] - x1[i] + 1) - o2;
		xx = x1[i] / len;
		yy = YY[i] / len;
		if(xx & 1) swap(o1,e1);
		if(yy & 1) swap(o2,e2);
		ll od = 0, ev = 0;
		if((xx + yy) & 1){
			od = e1 * e2 + o1 * o2;
		}
		else{
		    od = o1 * e2 + e1 * o2;
		}
		ev = 1ll * (x2[i] - x1[i] + 1) * (y2[i] - YY[i] + 1) - od;

		odd += od;
		even += ev;
	}
	ll cnt = 1ll * (n / len) * (n / len);
	ll res = min(cnt / 2 * len * len + even - odd, (cnt + 1) / 2 * len * len + odd - even);
	if(res < ans){
		ans = res;
	}
}

main () {
  scanf("%lld %d", &n, &k);
  for (ll i = 1; i <= k; i++) {
    ll a, b, c, d; scanf("%d %d %d %d", &a, &b, &c, &d);
    a--; b--; c--; d--;
    x1[i] = a; YY[i] = b; x2[i] = c; y2[i] = d;
  }
  for (ll i = 1; i * i <= n; i++) {
    if (n % i == 0) {
      calc(i);
      if (i != 1 && n / i != i) calc(n / i);
    }
  }
  printf("%lld", ans);
}

Compilation message

chessboard.cpp:61:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () {
       ^
chessboard.cpp: In function 'int main()':
chessboard.cpp:62:26: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
   scanf("%lld %d", &n, &k);
                          ^
chessboard.cpp:64:55: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     ll a, b, c, d; scanf("%d %d %d %d", &a, &b, &c, &d);
                                                       ^
chessboard.cpp:64:55: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
chessboard.cpp:64:55: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=]
chessboard.cpp:64:55: warning: format '%d' expects argument of type 'int*', but argument 5 has type 'long long int*' [-Wformat=]
chessboard.cpp:62:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %d", &n, &k);
                           ^
chessboard.cpp:64:56: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     ll a, b, c, d; scanf("%d %d %d %d", &a, &b, &c, &d);
                                                        ^

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	248 KB	Output is correct
2	Correct	1 ms	352 KB	Output is correct
3	Correct	2 ms	388 KB	Output is correct
4	Correct	2 ms	652 KB	Output is correct
5	Correct	1 ms	652 KB	Output is correct
6	Correct	2 ms	652 KB	Output is correct
7	Correct	2 ms	652 KB	Output is correct
8	Correct	2 ms	652 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	39 ms	2524 KB	Output is correct
2	Correct	12 ms	2524 KB	Output is correct
3	Correct	27 ms	2524 KB	Output is correct
4	Correct	28 ms	2524 KB	Output is correct
5	Correct	39 ms	2524 KB	Output is correct
6	Correct	39 ms	2524 KB	Output is correct
7	Correct	6 ms	2524 KB	Output is correct
8	Correct	24 ms	2524 KB	Output is correct
9	Correct	57 ms	3404 KB	Output is correct
10	Correct	34 ms	3404 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3404 KB	Output is correct
2	Correct	2 ms	3404 KB	Output is correct
3	Correct	2 ms	3404 KB	Output is correct
4	Correct	3 ms	3404 KB	Output is correct
5	Correct	2 ms	3404 KB	Output is correct
6	Correct	2 ms	3404 KB	Output is correct
7	Correct	2 ms	3404 KB	Output is correct
8	Correct	2 ms	3404 KB	Output is correct
9	Correct	2 ms	3404 KB	Output is correct
10	Correct	2 ms	3404 KB	Output is correct
11	Correct	2 ms	3404 KB	Output is correct
12	Correct	2 ms	3404 KB	Output is correct
13	Correct	3 ms	3404 KB	Output is correct
14	Correct	3 ms	3404 KB	Output is correct
15	Correct	2 ms	3404 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3404 KB	Output is correct
2	Correct	2 ms	3404 KB	Output is correct
3	Correct	2 ms	3404 KB	Output is correct
4	Correct	3 ms	3404 KB	Output is correct
5	Correct	2 ms	3404 KB	Output is correct
6	Correct	2 ms	3404 KB	Output is correct
7	Correct	2 ms	3404 KB	Output is correct
8	Correct	2 ms	3404 KB	Output is correct
9	Correct	2 ms	3404 KB	Output is correct
10	Correct	2 ms	3404 KB	Output is correct
11	Correct	2 ms	3404 KB	Output is correct
12	Correct	2 ms	3404 KB	Output is correct
13	Correct	3 ms	3404 KB	Output is correct
14	Correct	3 ms	3404 KB	Output is correct
15	Correct	2 ms	3404 KB	Output is correct
16	Correct	21 ms	3404 KB	Output is correct
17	Correct	43 ms	3404 KB	Output is correct
18	Correct	74 ms	3724 KB	Output is correct
19	Correct	283 ms	3724 KB	Output is correct
20	Correct	352 ms	3820 KB	Output is correct
21	Correct	46 ms	3820 KB	Output is correct
22	Correct	3 ms	3820 KB	Output is correct
23	Correct	49 ms	3820 KB	Output is correct
24	Correct	68 ms	3820 KB	Output is correct
25	Correct	12 ms	3820 KB	Output is correct
26	Correct	45 ms	3820 KB	Output is correct
27	Correct	68 ms	3820 KB	Output is correct
28	Correct	79 ms	3820 KB	Output is correct
29	Correct	25 ms	3820 KB	Output is correct
30	Correct	4 ms	3820 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	39 ms	2524 KB	Output is correct
2	Correct	12 ms	2524 KB	Output is correct
3	Correct	27 ms	2524 KB	Output is correct
4	Correct	28 ms	2524 KB	Output is correct
5	Correct	39 ms	2524 KB	Output is correct
6	Correct	39 ms	2524 KB	Output is correct
7	Correct	6 ms	2524 KB	Output is correct
8	Correct	24 ms	2524 KB	Output is correct
9	Correct	57 ms	3404 KB	Output is correct
10	Correct	34 ms	3404 KB	Output is correct
11	Correct	2 ms	3404 KB	Output is correct
12	Correct	2 ms	3404 KB	Output is correct
13	Correct	2 ms	3404 KB	Output is correct
14	Correct	3 ms	3404 KB	Output is correct
15	Correct	2 ms	3404 KB	Output is correct
16	Correct	2 ms	3404 KB	Output is correct
17	Correct	2 ms	3404 KB	Output is correct
18	Correct	2 ms	3404 KB	Output is correct
19	Correct	2 ms	3404 KB	Output is correct
20	Correct	2 ms	3404 KB	Output is correct
21	Correct	2 ms	3404 KB	Output is correct
22	Correct	2 ms	3404 KB	Output is correct
23	Correct	3 ms	3404 KB	Output is correct
24	Correct	3 ms	3404 KB	Output is correct
25	Correct	2 ms	3404 KB	Output is correct
26	Correct	21 ms	3404 KB	Output is correct
27	Correct	43 ms	3404 KB	Output is correct
28	Correct	74 ms	3724 KB	Output is correct
29	Correct	283 ms	3724 KB	Output is correct
30	Correct	352 ms	3820 KB	Output is correct
31	Correct	46 ms	3820 KB	Output is correct
32	Correct	3 ms	3820 KB	Output is correct
33	Correct	49 ms	3820 KB	Output is correct
34	Correct	68 ms	3820 KB	Output is correct
35	Correct	12 ms	3820 KB	Output is correct
36	Correct	45 ms	3820 KB	Output is correct
37	Correct	68 ms	3820 KB	Output is correct
38	Correct	79 ms	3820 KB	Output is correct
39	Correct	25 ms	3820 KB	Output is correct
40	Correct	4 ms	3820 KB	Output is correct
41	Correct	246 ms	3820 KB	Output is correct
42	Correct	75 ms	3820 KB	Output is correct
43	Correct	151 ms	3820 KB	Output is correct
44	Correct	77 ms	3820 KB	Output is correct
45	Correct	59 ms	3820 KB	Output is correct
46	Correct	278 ms	3820 KB	Output is correct
47	Correct	54 ms	3820 KB	Output is correct
48	Correct	105 ms	3820 KB	Output is correct
49	Correct	79 ms	3820 KB	Output is correct
50	Correct	1252 ms	3820 KB	Output is correct
51	Correct	1276 ms	3820 KB	Output is correct
52	Correct	1184 ms	3820 KB	Output is correct
53	Correct	1302 ms	3820 KB	Output is correct
54	Correct	1191 ms	3820 KB	Output is correct
55	Correct	1332 ms	3820 KB	Output is correct
56	Correct	1175 ms	3820 KB	Output is correct

Subtask #6
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	248 KB	Output is correct
2	Correct	1 ms	352 KB	Output is correct
3	Correct	2 ms	388 KB	Output is correct
4	Correct	2 ms	652 KB	Output is correct
5	Correct	1 ms	652 KB	Output is correct
6	Correct	2 ms	652 KB	Output is correct
7	Correct	2 ms	652 KB	Output is correct
8	Correct	2 ms	652 KB	Output is correct
9	Correct	39 ms	2524 KB	Output is correct
10	Correct	12 ms	2524 KB	Output is correct
11	Correct	27 ms	2524 KB	Output is correct
12	Correct	28 ms	2524 KB	Output is correct
13	Correct	39 ms	2524 KB	Output is correct
14	Correct	39 ms	2524 KB	Output is correct
15	Correct	6 ms	2524 KB	Output is correct
16	Correct	24 ms	2524 KB	Output is correct
17	Correct	57 ms	3404 KB	Output is correct
18	Correct	34 ms	3404 KB	Output is correct
19	Correct	2 ms	3404 KB	Output is correct
20	Correct	2 ms	3404 KB	Output is correct
21	Correct	2 ms	3404 KB	Output is correct
22	Correct	3 ms	3404 KB	Output is correct
23	Correct	2 ms	3404 KB	Output is correct
24	Correct	2 ms	3404 KB	Output is correct
25	Correct	2 ms	3404 KB	Output is correct
26	Correct	2 ms	3404 KB	Output is correct
27	Correct	2 ms	3404 KB	Output is correct
28	Correct	2 ms	3404 KB	Output is correct
29	Correct	2 ms	3404 KB	Output is correct
30	Correct	2 ms	3404 KB	Output is correct
31	Correct	3 ms	3404 KB	Output is correct
32	Correct	3 ms	3404 KB	Output is correct
33	Correct	2 ms	3404 KB	Output is correct
34	Correct	21 ms	3404 KB	Output is correct
35	Correct	43 ms	3404 KB	Output is correct
36	Correct	74 ms	3724 KB	Output is correct
37	Correct	283 ms	3724 KB	Output is correct
38	Correct	352 ms	3820 KB	Output is correct
39	Correct	46 ms	3820 KB	Output is correct
40	Correct	3 ms	3820 KB	Output is correct
41	Correct	49 ms	3820 KB	Output is correct
42	Correct	68 ms	3820 KB	Output is correct
43	Correct	12 ms	3820 KB	Output is correct
44	Correct	45 ms	3820 KB	Output is correct
45	Correct	68 ms	3820 KB	Output is correct
46	Correct	79 ms	3820 KB	Output is correct
47	Correct	25 ms	3820 KB	Output is correct
48	Correct	4 ms	3820 KB	Output is correct
49	Correct	246 ms	3820 KB	Output is correct
50	Correct	75 ms	3820 KB	Output is correct
51	Correct	151 ms	3820 KB	Output is correct
52	Correct	77 ms	3820 KB	Output is correct
53	Correct	59 ms	3820 KB	Output is correct
54	Correct	278 ms	3820 KB	Output is correct
55	Correct	54 ms	3820 KB	Output is correct
56	Correct	105 ms	3820 KB	Output is correct
57	Correct	79 ms	3820 KB	Output is correct
58	Correct	1252 ms	3820 KB	Output is correct
59	Correct	1276 ms	3820 KB	Output is correct
60	Correct	1184 ms	3820 KB	Output is correct
61	Correct	1302 ms	3820 KB	Output is correct
62	Correct	1191 ms	3820 KB	Output is correct
63	Correct	1332 ms	3820 KB	Output is correct
64	Correct	1175 ms	3820 KB	Output is correct
65	Correct	2 ms	3820 KB	Output is correct
66	Correct	1 ms	3820 KB	Output is correct
67	Correct	1315 ms	3820 KB	Output is correct
68	Correct	1272 ms	3820 KB	Output is correct
69	Correct	1132 ms	3820 KB	Output is correct
70	Correct	1202 ms	3820 KB	Output is correct
71	Correct	1194 ms	3820 KB	Output is correct
72	Correct	1166 ms	3820 KB	Output is correct
73	Correct	1202 ms	3820 KB	Output is correct
74	Correct	1295 ms	3820 KB	Output is correct
75	Correct	1231 ms	3820 KB	Output is correct
76	Correct	1338 ms	3820 KB	Output is correct
77	Correct	263 ms	3820 KB	Output is correct
78	Correct	95 ms	3820 KB	Output is correct
79	Correct	165 ms	3820 KB	Output is correct
80	Correct	162 ms	3820 KB	Output is correct
81	Correct	138 ms	3820 KB	Output is correct
82	Correct	119 ms	3820 KB	Output is correct
83	Correct	105 ms	3820 KB	Output is correct
84	Correct	775 ms	3820 KB	Output is correct
85	Correct	1409 ms	3820 KB	Output is correct
86	Correct	3 ms	3820 KB	Output is correct
87	Correct	2 ms	3820 KB	Output is correct
88	Correct	1373 ms	3820 KB	Output is correct
89	Correct	276 ms	3820 KB	Output is correct
90	Correct	1 ms	3820 KB	Output is correct

답안 #40565

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 8.0 / 8.0

Subtask #3 15.0 / 15.0

Subtask #4 16.0 / 16.0

Subtask #5 23.0 / 23.0

Subtask #6 30.0 / 30.0

Subtask #1
8.0 / 8.0

Subtask #2
8.0 / 8.0

Subtask #3
15.0 / 15.0

Subtask #4
16.0 / 16.0

Subtask #5
23.0 / 23.0

Subtask #6
30.0 / 30.0