#include <bits/stdc++.h>
using namespace std;
typedef long long LL;;
LL r, c, n;
vector<pair<LL,LL> > seeds;
LL best;
const LL INF = 2100100100;
void tryx(LL x){
set<LL> stuff[r + x];
for(pair<LL,LL> z : seeds){
for(int j = 0; j <= x; j++){
stuff[j + z.first].insert(z.second);
}
}
vector<LL> up(r+x, 0);
vector<LL> down(r+x, 0);
vector<LL> tot(r+x, 0);
for(int j = 0; j < r+x; j++){
vector<LL> grass;
for(LL a : stuff[j]){
grass.push_back(a);
}
if(grass.size() == 0){
up[j] = down[j] = tot[j] = INF;
} else {
up[j] = grass[0] - 0;
down[j] = c-1 - grass[grass.size()-1];
for(int i = 0; i + 1 < grass.size(); i++){
tot[j] = max(tot[j], grass[i+1] - grass[i] - 1);
}
}
}
for(int j = 0; j + r - 1 < r+x; j++){
LL maxup = 0;
LL maxdown = 0;
LL maxtot = 0;
for(int i = j; i < j + r; i++){
maxup = max(maxup, up[i]);
maxdown = max(maxdown, down[i]);
maxtot = max(maxtot, tot[i]);
}
best = min(best, max(maxup + maxdown, maxtot) + x);
}
}
int main(){
cin >> r >> c >> n;
best = r + c;
for(int i = 0; i < n; i++){
LL s, e;
cin >> s >> e;
s--; e--;
seeds.push_back({s,e});
// [0,r), [0,c)
}
for(int j = 0; j <= r; j++){
tryx(j);
}
cout << best << '\n';
}
Compilation message
cultivation.cpp: In function 'void tryx(LL)':
cultivation.cpp:29:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i + 1 < grass.size(); i++){
~~~~~~^~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
248 KB |
Output is correct |
| 2 |
Correct |
3 ms |
360 KB |
Output is correct |
| 3 |
Correct |
4 ms |
360 KB |
Output is correct |
| 4 |
Correct |
2 ms |
604 KB |
Output is correct |
| 5 |
Correct |
3 ms |
604 KB |
Output is correct |
| 6 |
Correct |
2 ms |
604 KB |
Output is correct |
| 7 |
Correct |
2 ms |
604 KB |
Output is correct |
| 8 |
Correct |
2 ms |
604 KB |
Output is correct |
| 9 |
Correct |
2 ms |
652 KB |
Output is correct |
| 10 |
Correct |
2 ms |
664 KB |
Output is correct |
| 11 |
Correct |
3 ms |
664 KB |
Output is correct |
| 12 |
Correct |
3 ms |
668 KB |
Output is correct |
| 13 |
Correct |
2 ms |
728 KB |
Output is correct |
| 14 |
Correct |
3 ms |
728 KB |
Output is correct |
| 15 |
Correct |
3 ms |
768 KB |
Output is correct |
| 16 |
Correct |
3 ms |
768 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
248 KB |
Output is correct |
| 2 |
Correct |
3 ms |
360 KB |
Output is correct |
| 3 |
Correct |
4 ms |
360 KB |
Output is correct |
| 4 |
Correct |
2 ms |
604 KB |
Output is correct |
| 5 |
Correct |
3 ms |
604 KB |
Output is correct |
| 6 |
Correct |
2 ms |
604 KB |
Output is correct |
| 7 |
Correct |
2 ms |
604 KB |
Output is correct |
| 8 |
Correct |
2 ms |
604 KB |
Output is correct |
| 9 |
Correct |
2 ms |
652 KB |
Output is correct |
| 10 |
Correct |
2 ms |
664 KB |
Output is correct |
| 11 |
Correct |
3 ms |
664 KB |
Output is correct |
| 12 |
Correct |
3 ms |
668 KB |
Output is correct |
| 13 |
Correct |
2 ms |
728 KB |
Output is correct |
| 14 |
Correct |
3 ms |
728 KB |
Output is correct |
| 15 |
Correct |
3 ms |
768 KB |
Output is correct |
| 16 |
Correct |
3 ms |
768 KB |
Output is correct |
| 17 |
Correct |
3 ms |
792 KB |
Output is correct |
| 18 |
Correct |
4 ms |
796 KB |
Output is correct |
| 19 |
Correct |
6 ms |
804 KB |
Output is correct |
| 20 |
Correct |
3 ms |
812 KB |
Output is correct |
| 21 |
Correct |
6 ms |
940 KB |
Output is correct |
| 22 |
Correct |
12 ms |
940 KB |
Output is correct |
| 23 |
Correct |
6 ms |
940 KB |
Output is correct |
| 24 |
Correct |
17 ms |
940 KB |
Output is correct |
| 25 |
Correct |
17 ms |
940 KB |
Output is correct |
| 26 |
Correct |
31 ms |
940 KB |
Output is correct |
| 27 |
Correct |
18 ms |
968 KB |
Output is correct |
| 28 |
Correct |
13 ms |
968 KB |
Output is correct |
| 29 |
Correct |
17 ms |
968 KB |
Output is correct |
| 30 |
Correct |
18 ms |
980 KB |
Output is correct |
| 31 |
Correct |
23 ms |
984 KB |
Output is correct |
| 32 |
Correct |
22 ms |
988 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
248 KB |
Output is correct |
| 2 |
Correct |
3 ms |
360 KB |
Output is correct |
| 3 |
Correct |
4 ms |
360 KB |
Output is correct |
| 4 |
Correct |
2 ms |
604 KB |
Output is correct |
| 5 |
Correct |
3 ms |
604 KB |
Output is correct |
| 6 |
Correct |
2 ms |
604 KB |
Output is correct |
| 7 |
Correct |
2 ms |
604 KB |
Output is correct |
| 8 |
Correct |
2 ms |
604 KB |
Output is correct |
| 9 |
Correct |
2 ms |
652 KB |
Output is correct |
| 10 |
Correct |
2 ms |
664 KB |
Output is correct |
| 11 |
Correct |
3 ms |
664 KB |
Output is correct |
| 12 |
Correct |
3 ms |
668 KB |
Output is correct |
| 13 |
Correct |
2 ms |
728 KB |
Output is correct |
| 14 |
Correct |
3 ms |
728 KB |
Output is correct |
| 15 |
Correct |
3 ms |
768 KB |
Output is correct |
| 16 |
Correct |
3 ms |
768 KB |
Output is correct |
| 17 |
Correct |
3 ms |
792 KB |
Output is correct |
| 18 |
Correct |
4 ms |
796 KB |
Output is correct |
| 19 |
Correct |
6 ms |
804 KB |
Output is correct |
| 20 |
Correct |
3 ms |
812 KB |
Output is correct |
| 21 |
Correct |
6 ms |
940 KB |
Output is correct |
| 22 |
Correct |
12 ms |
940 KB |
Output is correct |
| 23 |
Correct |
6 ms |
940 KB |
Output is correct |
| 24 |
Correct |
17 ms |
940 KB |
Output is correct |
| 25 |
Correct |
17 ms |
940 KB |
Output is correct |
| 26 |
Correct |
31 ms |
940 KB |
Output is correct |
| 27 |
Correct |
18 ms |
968 KB |
Output is correct |
| 28 |
Correct |
13 ms |
968 KB |
Output is correct |
| 29 |
Correct |
17 ms |
968 KB |
Output is correct |
| 30 |
Correct |
18 ms |
980 KB |
Output is correct |
| 31 |
Correct |
23 ms |
984 KB |
Output is correct |
| 32 |
Correct |
22 ms |
988 KB |
Output is correct |
| 33 |
Correct |
3 ms |
988 KB |
Output is correct |
| 34 |
Incorrect |
59 ms |
1380 KB |
Output isn't correct |
| 35 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
2 ms |
1380 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
2 ms |
1380 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
248 KB |
Output is correct |
| 2 |
Correct |
3 ms |
360 KB |
Output is correct |
| 3 |
Correct |
4 ms |
360 KB |
Output is correct |
| 4 |
Correct |
2 ms |
604 KB |
Output is correct |
| 5 |
Correct |
3 ms |
604 KB |
Output is correct |
| 6 |
Correct |
2 ms |
604 KB |
Output is correct |
| 7 |
Correct |
2 ms |
604 KB |
Output is correct |
| 8 |
Correct |
2 ms |
604 KB |
Output is correct |
| 9 |
Correct |
2 ms |
652 KB |
Output is correct |
| 10 |
Correct |
2 ms |
664 KB |
Output is correct |
| 11 |
Correct |
3 ms |
664 KB |
Output is correct |
| 12 |
Correct |
3 ms |
668 KB |
Output is correct |
| 13 |
Correct |
2 ms |
728 KB |
Output is correct |
| 14 |
Correct |
3 ms |
728 KB |
Output is correct |
| 15 |
Correct |
3 ms |
768 KB |
Output is correct |
| 16 |
Correct |
3 ms |
768 KB |
Output is correct |
| 17 |
Correct |
3 ms |
792 KB |
Output is correct |
| 18 |
Correct |
4 ms |
796 KB |
Output is correct |
| 19 |
Correct |
6 ms |
804 KB |
Output is correct |
| 20 |
Correct |
3 ms |
812 KB |
Output is correct |
| 21 |
Correct |
6 ms |
940 KB |
Output is correct |
| 22 |
Correct |
12 ms |
940 KB |
Output is correct |
| 23 |
Correct |
6 ms |
940 KB |
Output is correct |
| 24 |
Correct |
17 ms |
940 KB |
Output is correct |
| 25 |
Correct |
17 ms |
940 KB |
Output is correct |
| 26 |
Correct |
31 ms |
940 KB |
Output is correct |
| 27 |
Correct |
18 ms |
968 KB |
Output is correct |
| 28 |
Correct |
13 ms |
968 KB |
Output is correct |
| 29 |
Correct |
17 ms |
968 KB |
Output is correct |
| 30 |
Correct |
18 ms |
980 KB |
Output is correct |
| 31 |
Correct |
23 ms |
984 KB |
Output is correct |
| 32 |
Correct |
22 ms |
988 KB |
Output is correct |
| 33 |
Correct |
3 ms |
988 KB |
Output is correct |
| 34 |
Incorrect |
59 ms |
1380 KB |
Output isn't correct |
| 35 |
Halted |
0 ms |
0 KB |
- |
