oj.uz

Submission #958859

# Submission time Handle Problem Language Result Execution time Memory
958859 2024-04-07T01:44:16 Z MinaRagy06 Shortcut (IOI16_shortcut) C++17
0 / 100
 0 ms 600 KB 
#include <bits/stdc++.h>
#include "shortcut.h"
#ifdef MINA
#include "grader.cpp"
#endif
using namespace std;
#define ll long long

ll find_shortcut(int n, vector<int> l, vector<int> a, int c) {
	reverse(l.begin(), l.end()), l.push_back(0), reverse(l.begin(), l.end()), l.push_back(0);
	reverse(a.begin(), a.end()), a.push_back(-1), reverse(a.begin(), a.end());
	ll prf[n + 2]{};
	for (int i = 2; i <= n; i++) {
		prf[i] = prf[i - 1] + l[i - 1];
	}
	ll prfmx[n + 2]{}, sufmx[n + 2]{};
	for (int i = 1; i <= n; i++) {
		prfmx[i] = max(prfmx[i - 1] + l[i - 1], (ll)a[i]);
	}
	for (int i = n; i >= 1; i--) {
		sufmx[i] = max(sufmx[i + 1] + l[i], (ll)a[i]);
	}
	ll ans = 1e18;
	for (int x = 1; x <= n; x++) {
		for (int y = x + 1; y <= n; y++) {
			ll d = prfmx[x] + sufmx[y] + min(prf[y] - prf[x], (ll)c);
			ll len = prf[y] - prf[x] + c;
			for (int i = x; i <= y; i++) {
				if (i != x) d = max(d, a[i] + prfmx[x] + min(prf[i] - prf[x], len - (prf[i] - prf[x])));
				if (i != y) d = max(d, a[i] + sufmx[y] + min(prf[y] - prf[i], len - (prf[y] - prf[i])));
				for (int j = i + 1; j <= y; j++) {
					d = max(d, a[i] + a[j] + min(prf[j] - prf[i], len - (prf[j] - prf[i])));
				}
			}
// 			cout << x << ' ' << y << ": " << d << '\n';
			ans = min(ans, d);
		}
	}
	return ans;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB n = 4, 80 is a correct answer
2 Incorrect 0 ms 344 KB n = 9, incorrect answer: jury 110 vs contestant 100
3 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB n = 4, 80 is a correct answer
2 Incorrect 0 ms 344 KB n = 9, incorrect answer: jury 110 vs contestant 100
3 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB n = 4, 80 is a correct answer
2 Incorrect 0 ms 344 KB n = 9, incorrect answer: jury 110 vs contestant 100
3 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB n = 4, 80 is a correct answer
2 Incorrect 0 ms 344 KB n = 9, incorrect answer: jury 110 vs contestant 100
3 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB n = 4, 80 is a correct answer
2 Incorrect 0 ms 344 KB n = 9, incorrect answer: jury 110 vs contestant 100
3 Halted 0 ms 0 KB -

Subtask #6
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB n = 4, 80 is a correct answer
2 Incorrect 0 ms 344 KB n = 9, incorrect answer: jury 110 vs contestant 100
3 Halted 0 ms 0 KB -

Subtask #7
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB n = 4, 80 is a correct answer
2 Incorrect 0 ms 344 KB n = 9, incorrect answer: jury 110 vs contestant 100
3 Halted 0 ms 0 KB -

Subtask #8
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB n = 4, 80 is a correct answer
2 Incorrect 0 ms 344 KB n = 9, incorrect answer: jury 110 vs contestant 100
3 Halted 0 ms 0 KB -