Submission #27808

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
27808	2017-07-14T06:49:13 Z	상수조아(#1181)	Cultivation (JOI17_cultivation)	C++11	15 / 100	73 ms	1176 KB

cultivation

#include <stdio.h>
#include <vector>
#include <algorithm>
#include <set>
#include <bitset>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
#define pb(x) push_back(x)
#define rep(i, n) for(int i=0;i<n;i++)
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define Fi first
#define Se second

int R, C, N;
pii P[320];

int Do(ll L) {
	for(int i=0;i<R&&i<=L;i++) {
		for(int j=0;i+j<R&&i+j<=L;j++) {
			int left = 0, right = 0;
			int g = 0;
			int ok = 1;
			for(int r=1;r<=R;r++){
				vector <int> v;
				for(int k=1;k<=N;k++) {
					int x = P[k].Fi, y = P[k].Se;
					if(x-j <= r && r <= x+i) {
						v.pb(y);
					}
				}
				if(sz(v) == 0) { ok = 0; break; }
				left = max(left, v[0] - 1);
				right = max(right, C - v.back());
				for(int i=1;i<sz(v);i++) g = max(g, v[i] - v[i-1] - 1);
			}
			if(ok) {
				ll f = max(g, left + right);
				if(f + i + j <= L) return 1;
			}
		}
	}
	return 0;
}

int main(){
	scanf("%d%d%d", &R, &C, &N);
	if(R > 40) return 0;
	for(int i=1;i<=N;i++) scanf("%d%d", &P[i].Fi, &P[i].Se);
	sort(P+1, P+1+N, [](pii a, pii b) { return a.Se < b.Se; });
	ll low = 0, high = R + C - 2, res = 0;
	while(low <= high) {
		ll mid = (low + high) >> 1;
		if(Do(mid)) res = mid, high = mid - 1;
		else low = mid + 1;
	}
	printf("%lld\n", res);
	return 0;
};

Compilation message

cultivation.cpp: In function 'int main()':
cultivation.cpp:49:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &R, &C, &N);
                             ^
cultivation.cpp:51:57: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=N;i++) scanf("%d%d", &P[i].Fi, &P[i].Se);
                                                         ^

Subtask #1
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	1176 KB	Output is correct
2	Correct	1176 KB	Output is correct
3	Correct	1176 KB	Output is correct
4	Correct	1176 KB	Output is correct
5	Correct	1176 KB	Output is correct
6	Correct	1176 KB	Output is correct
7	Correct	1176 KB	Output is correct
8	Correct	1176 KB	Output is correct
9	Correct	1176 KB	Output is correct
10	Correct	1176 KB	Output is correct
11	Correct	1176 KB	Output is correct
12	Correct	1176 KB	Output is correct
13	Correct	1176 KB	Output is correct
14	Correct	1176 KB	Output is correct
15	Correct	1176 KB	Output is correct
16	Correct	1176 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	1176 KB	Output is correct
2	Correct	0 ms	1176 KB	Output is correct
3	Correct	0 ms	1176 KB	Output is correct
4	Correct	0 ms	1176 KB	Output is correct
5	Correct	0 ms	1176 KB	Output is correct
6	Correct	0 ms	1176 KB	Output is correct
7	Correct	0 ms	1176 KB	Output is correct
8	Correct	0 ms	1176 KB	Output is correct
9	Correct	0 ms	1176 KB	Output is correct
10	Correct	0 ms	1176 KB	Output is correct
11	Correct	0 ms	1176 KB	Output is correct
12	Correct	0 ms	1176 KB	Output is correct
13	Correct	0 ms	1176 KB	Output is correct
14	Correct	0 ms	1176 KB	Output is correct
15	Correct	0 ms	1176 KB	Output is correct
16	Correct	0 ms	1176 KB	Output is correct
17	Correct	0 ms	1176 KB	Output is correct
18	Correct	0 ms	1176 KB	Output is correct
19	Correct	23 ms	1176 KB	Output is correct
20	Correct	0 ms	1176 KB	Output is correct
21	Correct	73 ms	1176 KB	Output is correct
22	Correct	19 ms	1176 KB	Output is correct
23	Correct	46 ms	1176 KB	Output is correct
24	Correct	23 ms	1176 KB	Output is correct
25	Correct	19 ms	1176 KB	Output is correct
26	Correct	59 ms	1176 KB	Output is correct
27	Correct	29 ms	1176 KB	Output is correct
28	Correct	23 ms	1176 KB	Output is correct
29	Correct	6 ms	1176 KB	Output is correct
30	Correct	9 ms	1176 KB	Output is correct
31	Correct	13 ms	1176 KB	Output is correct
32	Correct	16 ms	1176 KB	Output is correct

Subtask #3
0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	1176 KB	Output is correct
2	Correct	0 ms	1176 KB	Output is correct
3	Correct	0 ms	1176 KB	Output is correct
4	Correct	0 ms	1176 KB	Output is correct
5	Correct	0 ms	1176 KB	Output is correct
6	Correct	0 ms	1176 KB	Output is correct
7	Correct	0 ms	1176 KB	Output is correct
8	Correct	0 ms	1176 KB	Output is correct
9	Correct	0 ms	1176 KB	Output is correct
10	Correct	0 ms	1176 KB	Output is correct
11	Correct	0 ms	1176 KB	Output is correct
12	Correct	0 ms	1176 KB	Output is correct
13	Correct	0 ms	1176 KB	Output is correct
14	Correct	0 ms	1176 KB	Output is correct
15	Correct	0 ms	1176 KB	Output is correct
16	Correct	0 ms	1176 KB	Output is correct
17	Correct	0 ms	1176 KB	Output is correct
18	Correct	0 ms	1176 KB	Output is correct
19	Correct	23 ms	1176 KB	Output is correct
20	Correct	0 ms	1176 KB	Output is correct
21	Correct	73 ms	1176 KB	Output is correct
22	Correct	19 ms	1176 KB	Output is correct
23	Correct	46 ms	1176 KB	Output is correct
24	Correct	23 ms	1176 KB	Output is correct
25	Correct	19 ms	1176 KB	Output is correct
26	Correct	59 ms	1176 KB	Output is correct
27	Correct	29 ms	1176 KB	Output is correct
28	Correct	23 ms	1176 KB	Output is correct
29	Correct	6 ms	1176 KB	Output is correct
30	Correct	9 ms	1176 KB	Output is correct
31	Correct	13 ms	1176 KB	Output is correct
32	Correct	16 ms	1176 KB	Output is correct
33	Incorrect	0 ms	1176 KB	Output isn't correct
34	Halted	0 ms	0 KB	-

Subtask #4
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	1176 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	1176 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #6
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	1176 KB	Output is correct
2	Correct	0 ms	1176 KB	Output is correct
3	Correct	0 ms	1176 KB	Output is correct
4	Correct	0 ms	1176 KB	Output is correct
5	Correct	0 ms	1176 KB	Output is correct
6	Correct	0 ms	1176 KB	Output is correct
7	Correct	0 ms	1176 KB	Output is correct
8	Correct	0 ms	1176 KB	Output is correct
9	Correct	0 ms	1176 KB	Output is correct
10	Correct	0 ms	1176 KB	Output is correct
11	Correct	0 ms	1176 KB	Output is correct
12	Correct	0 ms	1176 KB	Output is correct
13	Correct	0 ms	1176 KB	Output is correct
14	Correct	0 ms	1176 KB	Output is correct
15	Correct	0 ms	1176 KB	Output is correct
16	Correct	0 ms	1176 KB	Output is correct
17	Correct	0 ms	1176 KB	Output is correct
18	Correct	0 ms	1176 KB	Output is correct
19	Correct	23 ms	1176 KB	Output is correct
20	Correct	0 ms	1176 KB	Output is correct
21	Correct	73 ms	1176 KB	Output is correct
22	Correct	19 ms	1176 KB	Output is correct
23	Correct	46 ms	1176 KB	Output is correct
24	Correct	23 ms	1176 KB	Output is correct
25	Correct	19 ms	1176 KB	Output is correct
26	Correct	59 ms	1176 KB	Output is correct
27	Correct	29 ms	1176 KB	Output is correct
28	Correct	23 ms	1176 KB	Output is correct
29	Correct	6 ms	1176 KB	Output is correct
30	Correct	9 ms	1176 KB	Output is correct
31	Correct	13 ms	1176 KB	Output is correct
32	Correct	16 ms	1176 KB	Output is correct
33	Incorrect	0 ms	1176 KB	Output isn't correct
34	Halted	0 ms	0 KB	-

Submission #27808

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 0 / 15.0

Subtask #4 0 / 30.0

Subtask #5 0 / 20.0

Subtask #6 0 / 20.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
0 / 15.0

Subtask #4
0 / 30.0

Subtask #5
0 / 20.0

Subtask #6
0 / 20.0