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Submission #776508

# Submission time Handle Problem Language Result Execution time Memory
776508 2023-07-08T03:04:16 Z salmon Fish (IOI08_fish) C++14
0 / 100
 1380 ms 65536 KB 
#include <bits/stdc++.h>
using namespace std;
int N,M;
int mod;
int l,h;
const int sq = 200;
vector<pair<int,int>> v;
long long int pown[sq + 5][500100];

int main(){
	scanf(" %d",&N);
	scanf(" %d",&M);
	
	scanf(" %d",&mod);
	
	map<int,int> mep;
	set<int> one;
	map<int,int> mepu;
	set<int> oneu;
	bool visited[M + 1];
	bool usable[M + 1];
	
	for(int j = 1; j <= sq + 1; j++){
		pown[j][0] = 1;
		for(int i = 1; i <= M; i++){
			pown[j][i] = pown[j][i - 1] * j % mod;
		}
	}
	
	for(int i = 0; i <= M; i++){
		visited[i] = false;
	}
	
	for(int i = 0; i <= M; i++) usable[i] = false;
	
	for(int i = 0; i < N; i++){
		scanf(" %d",&l);
		scanf(" %d",&h);
		
		v.push_back(make_pair(l,h));
	}
	
	sort(v.begin(),v.end(),greater<pair<int,int>>());
	
	set<int> o;
	set<int> smol;
	vector<pair<int,int>> oh;
	
	for(int i = 0; i < v.size(); i++){
		if(o.find(v[i].second) == o.end()){
			oh.push_back(v[i]);
			o.insert(v[i].second);
		}
	}
	
	int it = 0;
	
	reverse(v.begin(),v.end());

	int bigans = 0;
	
	for(int i = 0; i < N; i++){
		while(it != N && v[i].first >= v[it].first * 2){
			if(usable[v[it].second]){
				if(one.find(v[it].second) != one.end() && mep.find(v[it].second) == mep.end()){
					one.erase(v[it].second);
					mep[v[it].second] = 2;
				}
				else if(mep.find(v[it].second) == mep.end()){
					one.insert(v[it].second);
				}
				else{
					mep[v[it].second]++;
				}
				
				it++;
			}
			else{
				if(oneu.find(v[it].second) != oneu.end() && mepu.find(v[it].second) == mepu.end()){
					oneu.erase(v[it].second);
					mepu[v[it].second] = 2;
				}
				else if(mepu.find(v[it].second) == mepu.end()){
					oneu.insert(v[it].second);
				}
				else{
					mepu[v[it].second]++;
				}
				
				it++;
			}
		}
		
		if(v[i] == oh.back()){
			
			if(mepu.find(oh.back().second) != mepu.end()){
				mep[oh.back().second] = mepu[oh.back().second];
			}
			else if(oneu.find(oh.back().second) != oneu.end()){
				one.insert(oh.back().second);
			}
			
			usable[oh.back().second] = true;
			
			long long int ans = pown[2][one.size()];
			
			for(pair<int,int> ii : mep){
				ans = ans * (ii.second + 1) % mod;
 			}
 			
 			bigans += ans;
 			bigans %= mod;
 			
 			
 			
 			oh.pop_back();
		}
	}
	
	printf("%d",bigans);
}
/*
5
3
7
2 2
5 1
8 3
4 1
2 3
 */

Compilation message

fish.cpp: In function 'int main()':
fish.cpp:49:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |  for(int i = 0; i < v.size(); i++){
      |                 ~~^~~~~~~~~~
fish.cpp:20:7: warning: variable 'visited' set but not used [-Wunused-but-set-variable]
   20 |  bool visited[M + 1];
      |       ^~~~~~~
fish.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |  scanf(" %d",&N);
      |  ~~~~~^~~~~~~~~~
fish.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf(" %d",&M);
      |  ~~~~~^~~~~~~~~~
fish.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |  scanf(" %d",&mod);
      |  ~~~~~^~~~~~~~~~~~
fish.cpp:37:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |   scanf(" %d",&l);
      |   ~~~~~^~~~~~~~~~
fish.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |   scanf(" %d",&h);
      |   ~~~~~^~~~~~~~~~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 1876 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 1876 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 1876 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 1840 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 1876 KB Output is correct
2 Incorrect 1 ms 1856 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1856 KB Output is correct
2 Incorrect 146 ms 6228 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2004 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 2004 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 76 ms 4516 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5332 KB Output is correct
2 Correct 7 ms 3668 KB Output is correct
3 Incorrect 8 ms 4820 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #11
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 125 ms 8912 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 167 ms 9412 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 12504 KB Output is correct
2 Incorrect 375 ms 17932 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #14
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 938 ms 26188 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #15
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1380 ms 36892 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #16
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 65 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 63 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 65 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 62 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -