답안 #46521 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
46521	2018-04-21T09:41:19 Z	ikura355	Cultivation (JOI17_cultivation)	C++14	5 / 100	2000 ms	748 KB

cultivation

//30 pts. #2
#include<bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define X first
#define Y second
const int maxn = 300 + 5;
const int inf = 1e9;
int n,R,C;
pii p[maxn];
vector<int> have[45];
vector<int> forup, fordown;
int main() {
	scanf("%d%d%d",&R,&C,&n);
	for(int i=1;i<=n;i++) scanf("%d%d",&p[i].X,&p[i].Y);
	int ans = inf;
	for(int i=1;i<=n;i++) forup.push_back(p[i].X-1), fordown.push_back(R-p[i].X);
	forup.erase(unique(forup.begin(),forup.end()),forup.end());
	fordown.erase(unique(fordown.begin(),fordown.end()),fordown.end());
	for(auto up : forup) {
		for(auto down : fordown) {
			for(int row=1;row<=R;row++) have[row].clear();
			for(int x=1;x<=n;x++) {
				for(int i=max(1,p[x].X-up);i<=min(R,p[x].X+down);i++) {
					have[i].push_back(p[x].Y);
				}
			}
			for(int row=1;row<=R;row++) sort(have[row].begin(), have[row].end());
			int left = 0, right = 0, gap = 0;
			int gaprow = 0, con = 0;
            for(int row=1;row<=R;row++) {
                if(have[row].size()==0) {
                    con++;
                    gaprow = max(gaprow, con);
                }
                else {
                    con = 0;
                    left = max(left, *have[row].begin()-1);
                    right = max(right, C-*have[row].rbegin());
                }
            }
            for(int row=1;row<=R;row++) {
            	for(int i=1;i<have[row].size();i++) gap = max(gap, have[row][i]-have[row][i-1]-1-left-right);
            }
			ans = min(ans, up + down + left + right + gap + gaprow);
//			printf("up = %d down = %d (%d) : use %d %d %d\n",up,down,gaprow,left,right,gap);
		}
	}
	printf("%d",ans);
}

Compilation message

cultivation.cpp: In function 'int main()':
cultivation.cpp:43:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
              for(int i=1;i<have[row].size();i++) gap = max(gap, have[row][i]-have[row][i-1]-1-left-right);
                          ~^~~~~~~~~~~~~~~~~
cultivation.cpp:14:7: 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:15:29: 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].X,&p[i].Y);
                        ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	476 KB	Output is correct
3	Correct	2 ms	476 KB	Output is correct
4	Correct	2 ms	592 KB	Output is correct
5	Correct	2 ms	592 KB	Output is correct
6	Correct	2 ms	592 KB	Output is correct
7	Correct	2 ms	592 KB	Output is correct
8	Correct	2 ms	592 KB	Output is correct
9	Correct	2 ms	592 KB	Output is correct
10	Correct	2 ms	592 KB	Output is correct
11	Correct	2 ms	592 KB	Output is correct
12	Correct	2 ms	592 KB	Output is correct
13	Correct	2 ms	592 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	2 ms	604 KB	Output is correct

Subtask #2
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	476 KB	Output is correct
3	Correct	2 ms	476 KB	Output is correct
4	Correct	2 ms	592 KB	Output is correct
5	Correct	2 ms	592 KB	Output is correct
6	Correct	2 ms	592 KB	Output is correct
7	Correct	2 ms	592 KB	Output is correct
8	Correct	2 ms	592 KB	Output is correct
9	Correct	2 ms	592 KB	Output is correct
10	Correct	2 ms	592 KB	Output is correct
11	Correct	2 ms	592 KB	Output is correct
12	Correct	2 ms	592 KB	Output is correct
13	Correct	2 ms	592 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	2 ms	604 KB	Output is correct
17	Correct	3 ms	604 KB	Output is correct
18	Correct	78 ms	620 KB	Output is correct
19	Correct	7 ms	620 KB	Output is correct
20	Correct	2 ms	620 KB	Output is correct
21	Correct	51 ms	620 KB	Output is correct
22	Correct	1022 ms	632 KB	Output is correct
23	Correct	14 ms	632 KB	Output is correct
24	Execution timed out	2055 ms	632 KB	Time limit exceeded
25	Halted	0 ms	0 KB	-

Subtask #3
0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	476 KB	Output is correct
3	Correct	2 ms	476 KB	Output is correct
4	Correct	2 ms	592 KB	Output is correct
5	Correct	2 ms	592 KB	Output is correct
6	Correct	2 ms	592 KB	Output is correct
7	Correct	2 ms	592 KB	Output is correct
8	Correct	2 ms	592 KB	Output is correct
9	Correct	2 ms	592 KB	Output is correct
10	Correct	2 ms	592 KB	Output is correct
11	Correct	2 ms	592 KB	Output is correct
12	Correct	2 ms	592 KB	Output is correct
13	Correct	2 ms	592 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	2 ms	604 KB	Output is correct
17	Correct	3 ms	604 KB	Output is correct
18	Correct	78 ms	620 KB	Output is correct
19	Correct	7 ms	620 KB	Output is correct
20	Correct	2 ms	620 KB	Output is correct
21	Correct	51 ms	620 KB	Output is correct
22	Correct	1022 ms	632 KB	Output is correct
23	Correct	14 ms	632 KB	Output is correct
24	Execution timed out	2055 ms	632 KB	Time limit exceeded
25	Halted	0 ms	0 KB	-

Subtask #4
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	2 ms	748 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	2 ms	748 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
2	Halted	0 ms	0 KB	-

Subtask #6
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	476 KB	Output is correct
3	Correct	2 ms	476 KB	Output is correct
4	Correct	2 ms	592 KB	Output is correct
5	Correct	2 ms	592 KB	Output is correct
6	Correct	2 ms	592 KB	Output is correct
7	Correct	2 ms	592 KB	Output is correct
8	Correct	2 ms	592 KB	Output is correct
9	Correct	2 ms	592 KB	Output is correct
10	Correct	2 ms	592 KB	Output is correct
11	Correct	2 ms	592 KB	Output is correct
12	Correct	2 ms	592 KB	Output is correct
13	Correct	2 ms	592 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	2 ms	604 KB	Output is correct
17	Correct	3 ms	604 KB	Output is correct
18	Correct	78 ms	620 KB	Output is correct
19	Correct	7 ms	620 KB	Output is correct
20	Correct	2 ms	620 KB	Output is correct
21	Correct	51 ms	620 KB	Output is correct
22	Correct	1022 ms	632 KB	Output is correct
23	Correct	14 ms	632 KB	Output is correct
24	Execution timed out	2055 ms	632 KB	Time limit exceeded
25	Halted	0 ms	0 KB	-

답안 #46521

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 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
0 / 10.0

Subtask #3
0 / 15.0

Subtask #4
0 / 30.0

Subtask #5
0 / 20.0

Subtask #6
0 / 20.0