oj.uz

Submission #776499

# Submission time Handle Problem Language Result Execution time Memory
776499 2023-07-08T02:48:25 Z jamezzz Fish (IOI08_fish) C++17
8 / 100
 280 ms 65536 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],num[maxk][maxk],mn[maxn];
vector<ii> v;

int main(){
	sf("%d%d%d",&n,&k,&m);
	for(int i=0;i<n;++i){
		int l,c;
		sf("%d%d",&l,&c);
		v.pb({l,c});
		++cnt[c];
	}
	sort(all(v));
	int ptr=n-1;
	int ans=0;
	fill(mn,mn+n+1,1);
	for(int i=n-1;i>=0;--i){
		if(bad[v[i].se])continue;
		while(ptr>=0&&v[i].fi<2*v[ptr].fi){
			--cnt[v[ptr].se];
			--ptr;
		}
		for(int j=1;j<=k;++j){
			if(v[i].se==j)continue;
			if(!bad[j]){
				mn[1]*=(cnt[j]+1);
				mn[1]%=m;
			}
			else if(cnt[j]!=0&&num[v[i].se][j]<=cnt[v[i].se]+1){
				mn[num[v[i].se][j]+1]*=2;
				mn[num[v[i].se][j]+1]%=m;
			}
		}
		int add=1;
		for(int j=1;j<=cnt[v[i].se]+1;++j){
			add*=mn[j];
			add%=m;
			ans+=add;
			ans%=m;
		}
		for(int j=1;j<=k;++j){
			if(v[i].se==j)continue;
			if(!bad[j])mn[1]=1;
			else if(cnt[j]!=0&&num[v[i].se][j]<=cnt[v[i].se]+1)mn[num[v[i].se][j]+1]=1;
		}
		for(int j=1;j<=k;++j){
			num[j][v[i].se]=cnt[j];
		}
		bad[v[i].se]=1;
	}
	pf("%d\n",ans);
}

/*
5
3
7
2 2
5 2
8 3
4 1
2 3
*/

Compilation message

fish.cpp: In function 'int main()':
fish.cpp:23:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |  sf("%d%d%d",&n,&k,&m);
      |    ^
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",&l,&c);
      |     ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 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 340 KB Output is correct
2 Incorrect 1 ms 340 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 212 KB Output is correct
2 Incorrect 109 ms 6264 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 724 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 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 44 ms 3916 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 25020 KB Output is correct
2 Incorrect 16 ms 8424 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #11
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 120 ms 20868 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 162 ms 29984 KB Output is correct
2 Incorrect 257 ms 53292 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #13
0 / 7.0

# Verdict Execution time Memory Grader output
1 Runtime error 280 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #14
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 396 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #15
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 372 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #16
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 376 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 340 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 408 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 384 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -