Submission #425637

#	Time	Username	Problem	Language	Result	Execution time	Memory
425637		Tangent	Wiring (IOI17_wiring)	C++17	7 / 100	281 ms	262148 KiB

wiring

#include "wiring.h"
#include "bits/stdc++.h"

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vii;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<vii> vvii;
typedef vector<vll> vvll;
typedef vector<vpii> vvpii;
typedef vector<vpll> vvpll;

#define ffor(i, a, b) for (ll i = (a); i < (b); i++)
#define fford(i, a, b) for (ll i = (a); i > (b); i--)
#define rep(i, n) ffor(i, 0, n)
#define forin(x, a) for (auto &x: a)
#define all(a) a.begin(), a.end()

long long min_total_length(std::vector<int> r, std::vector<int> b) {
	vvll dp(r.size() + 1, vll(b.size() + 1, 1ll << 62));
	dp[0][0] = 0;
	ffor(tot, 2, r.size() + b.size() + 1) {
		ffor(i, max(1ll, tot - (ll)b.size()), min(tot, (ll)r.size() + 1)) {
			ll j = tot - i;
			cerr << i << ' ' << j << '\n'; 
			ll curr = 0;
			rep(k, i) {
				curr += abs(r[i - k - 1] - b[j - 1]);
				dp[i][j] = min(dp[i][j], dp[i - k - 1][j - 1] + curr);
			}
			curr = 0;
			rep(k, j) {
				curr += abs(r[i - 1] - b[j - k - 1]);
				dp[i][j] = min(dp[i][j], dp[i - 1][j - k - 1] + curr);
			}
		}
	}

	return dp.back().back();
}

Compilation message (stderr)

wiring.cpp: In function 'long long int min_total_length(std::vector<int>, std::vector<int>)':
wiring.cpp:18:42: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 | #define ffor(i, a, b) for (ll i = (a); i < (b); i++)
      |                                          ^
wiring.cpp:27:2: note: in expansion of macro 'ffor'
   27 |  ffor(tot, 2, r.size() + b.size() + 1) {
      |  ^~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 13
• Subtask 3: 0 / 10
• Subtask 4: 0 / 25
• Subtask 5: 0 / 45