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Submission #386955

# Submission time Handle Problem Language Result Execution time Memory
386955 2021-04-07T16:45:43 Z peijar Sails (IOI07_sails) C++17
55 / 100
 27 ms 2968 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;

const int MAX = 1e5+1;

int nbAHauteur[MAX];
int nbPeutSurHauteur[MAX];

signed main(void)
{
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

	int nbPoteaux;
	cin >> nbPoteaux;
	int nbRestants(0);
	for (int iPoteau = 0; iPoteau < nbPoteaux; ++iPoteau) 
	{
		int hauteur, aMettre;
		cin >> hauteur >> aMettre;
		nbAHauteur[hauteur]++;
		nbRestants += aMettre;
		nbPeutSurHauteur[hauteur] += aMettre;
	}

	int sol(0);
	int nbPoteauxDispo = 0;
	int nbDrapeauxDispo = 0;
	for (int iHauteur(MAX-1); iHauteur; --iHauteur)
	{
		nbPoteauxDispo += nbAHauteur[iHauteur];
		nbDrapeauxDispo += nbPeutSurHauteur[iHauteur];

		int moy = (nbRestants + iHauteur - 1) / iHauteur;
		int placeEtage = min({moy, nbPoteauxDispo, nbDrapeauxDispo});
		nbDrapeauxDispo -= placeEtage;
		nbRestants -= placeEtage;
		sol += placeEtage * (placeEtage - 1) / 2;
	}
	cout << sol << endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 364 KB Output is correct
2 Correct 2 ms 364 KB Output is correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 364 KB Output is correct
2 Correct 3 ms 1772 KB Output is correct

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 748 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1132 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 13 ms 1772 KB Output isn't correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 1460 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 2968 KB Output is correct
2 Correct 16 ms 1132 KB Output is correct

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 27 ms 2924 KB Output isn't correct
2 Halted 0 ms 0 KB -