oj.uz

Submission #776562

# Submission time Handle Problem Language Result Execution time Memory
776562 2023-07-08T04:02:00 Z jamezzz Fish (IOI08_fish) C++17
4 / 100
 593 ms 22560 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define sf scanf
#define pf printf
#define fi first
#define se second
#define pb push_back
#define sz(x) ((int)x.size())
#define all(x) x.begin(),x.end()
#define LINF 1023456789123456789
typedef long long ll;
typedef pair<int,int> ii;
typedef pair<ll,int> li;
 
#define maxn 500005
#define maxk 7005
 
int n,k,m,cnt[maxk],bad[maxk];
bool num[maxk][maxk];
ll mn[maxn];
vector<ii> v;
vector<int> stuff[maxk];
 
int main(){
  sf("%d%d%d",&n,&k,&m);
  assert(n<=500000&&k<=7000);
  for(int i=0;i<n;++i){
	int l,c;
	sf("%d%d",&l,&c);
	v.pb({l,c});
	++cnt[c];
  }
  sort(all(v));
  for(int i=0;i<n;++i){
	  int c=v[i].se;
	  stuff[c].pb(i);
  }
  int ptr=n-1;
  ll ans=0;
  fill(mn,mn+n+1,1);
  for(int i=n-1;i>=0;--i){
	int c=v[i].se;
	if(bad[c])continue;
	while(ptr>=0&&v[i].fi<2*v[ptr].fi){
	  --cnt[v[ptr].se];
	  --ptr;
	}
	vector<int> undo;
	for(int j=1;j<=k;++j){
	  if(v[i].se==j)continue;
	  int x=bad[j]?cnt[c]:0;
	  if(!bad[j]||num[c][j]){
		mn[x+1]*=(cnt[j]+1);
		mn[x+1]%=m;
		undo.pb(x+1);
	  }
	}
	ll add=1;
	for(int j=1;j<=cnt[c]+1;++j){
	  add*=mn[j];
	  add%=m;
	  ans+=add;
	  ans%=m;
	}
	for(int x:undo)mn[x]=1;
	for(int j=1;j<=k;++j){
		if(sz(stuff[j])==1)num[j][c]=true;
		else{
			int a=stuff[j][sz(stuff[j])-2],b=stuff[j][sz(stuff[j])-1];
			if(v[a].fi*2<=v[b].fi)num[j][c]=true;
		}
	}
	bad[c]=1;
  }
  pf("%lld\n",ans);
}

Compilation message

fish.cpp: In function 'int main()':
fish.cpp:26:5: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |   sf("%d%d%d",&n,&k,&m);
      |     ^
fish.cpp:30:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |  sf("%d%d",&l,&c);
      |    ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 468 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 472 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 468 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 404 KB Output is correct
2 Incorrect 1 ms 480 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Incorrect 124 ms 12184 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 468 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 596 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 6136 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 12876 KB Output is correct
2 Incorrect 10 ms 1372 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #11
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 103 ms 8460 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 203 ms 22560 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 250 ms 8528 KB Output is correct
2 Incorrect 593 ms 12468 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #14
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 724 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #15
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 724 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #16
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 852 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 852 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 680 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 724 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -