Submission #46553

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
46553	2018-04-21 11:50:25	ikura355	Cultivation (JOI17_cultivation)	C++14	30 / 100	534 ms	1172 KiB

cultivation

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#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> forup, fordown;
int sz;
map<int,int> mp;
vector<int> have[maxn*2];
int main() {
//    freopen("try.txt","w",stdout);
  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);
  sort(forup.begin(),forup.end());
  sort(fordown.begin(),fordown.end());
  forup.erase(unique(forup.begin(),forup.end()),forup.end());
  fordown.erase(unique(fordown.begin(),fordown.end()),fordown.end());
  sort(&p[1],&p[n+1]);
  for(auto up : forup) {
    for(auto down : fordown) {
      mp.clear(); sz = 0;
      for(int x=1;x<=n;x++) {
        mp[max(1,p[x].X-up)];
        mp[min(R,p[x].X+down)+1];
 
 
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Compilation message (stderr)

cultivation.cpp: In function 'int main()':
cultivation.cpp:50:27: 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:16:7: 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:17:29: 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 / 5
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 0 / 30
• Subtask 5: 0 / 20
• Subtask 6: 0 / 20