oj.uz

Submission #40565

# Submission time Handle Problem Language Result Execution time Memory
40565 2018-02-05T01:42:35 Z Just_Solve_The_Problem Chessboard (IZhO18_chessboard) C++11
100 / 100
 1409 ms 3820 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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