Submission #934499

#	Time	Username	Problem	Language	Result	Execution time	Memory
934499		TIN	Kas (COCI17_kas)	C++17	100 / 100	157 ms	1784 KiB

kas

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 1e5 + 5;
const int INF = 2e9;

void Task() {
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	cout << fixed << setprecision(9);
	if (fopen("test.inp","r")) {
		freopen("test.inp","r",stdin);
		freopen("test.out","w",stdout);
	}
}

void Solve() {
	//Your Code
	int n;
	cin >> n;
	vector<int> dp1, dp2;
	dp1.resize(MAXN, INF);
	dp2.resize(MAXN);
	dp1[0] = 0;
	int sum = 0;
	for (int j = 0; j < n; j++) {
		int x;
		cin >> x;
		sum += x;
		dp2 = dp1;
		dp1.assign(dp1.size(), INF);
		for (int v = 0; v < MAXN; ++v) {
			if (x + v < MAXN) dp1[x + v] = min(dp1[x + v], dp2[v]);
			dp1[abs(v - x)] = min(dp1[abs(v - x)], dp2[v]);
			dp1[v] = min(dp1[v], dp2[v] + x);
		}
	}
	cout << (sum - dp1[0]) / 2 + dp1[0] << '\n';
}

int main() {
	Task();
	Solve();
	cerr << "\nTime run: " << 1000*clock()/CLOCKS_PER_SEC << "ms";
	return 0;
}

Compilation message (stderr)

kas.cpp: In function 'void Task()':
kas.cpp:13:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |   freopen("test.inp","r",stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
kas.cpp:14:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |   freopen("test.out","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10