Submission #736166

#	Time	Username	Problem	Language	Result	Execution time	Memory
736166		marvinthang	Kas (COCI17_kas)	C++17	100 / 100	176 ms	197956 KiB

kas

/******************************
*    author : @marvinthang    *
*    date : 09 / 02 / 2022    *
******************************/

#include <bits/stdc++.h>

using namespace std;

#define  superspeed  ios_base::sync_with_stdio(false); cin.tie(nullptr); // cout.tie(nullptr);
#define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }

template <class U, class V> ostream & operator << (ostream& out, const pair<U, V> &p) { return out << '(' << p.first << ", " << p.second << ')'; }
template <class T> ostream & operator << (ostream &out, const vector<T> &vt) { out << '{'; for (size_t i = 0; i + 1 < vt.size(); i++) out << vt[i] << ", "; if (!vt.empty()) out << vt.back(); return out << '}'; }

const 		int MOD = 1e9 + 7;
const     double PI = 3.1415926535897932384626433832795; // acos(-1.0); atan(-1.0);
const     int dir[] = {0, 1, 0, -1, 0}; // {0, 1, 1, -1, -1, 1, 0, -1, 0};
const  long long oo = 1e18;
const       int MAX = 1e5 + 5;

inline void minimize(int &a, int b) { if (a > b) a = b; }

int N, F[505][MAX], C[505];

int main(void) {
    file("coci1617_r4_kas");
    scanf("%d", &N);
    int sumVal = 0;
    for (int i = 1; i <= N; ++i) scanf("%d", C + i), sumVal += C[i];
    memset(F, 0x3f, sizeof(F));
	F[0][0] = 0;
    for (int i = 1; i <= N; ++i) {
    	for (int j = 0; j <= sumVal; ++j) {
    		if (j + C[i] <= sumVal) minimize(F[i][j], F[i - 1][j + C[i]]);
    		minimize(F[i][j], F[i - 1][abs(j - C[i])]);
    		minimize(F[i][j], F[i - 1][j] + C[i]);
    	}
    }
    cout << (sumVal - F[N][0]) / 2 + F[N][0];
    return 0;
}

Compilation message (stderr)

kas.cpp: In function 'int main()':
kas.cpp:11:61: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | #define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
      |                                                     ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
kas.cpp:27:5: note: in expansion of macro 'file'
   27 |     file("coci1617_r4_kas");
      |     ^~~~
kas.cpp:11:95: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | #define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
      |                                                                                       ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
kas.cpp:27:5: note: in expansion of macro 'file'
   27 |     file("coci1617_r4_kas");
      |     ^~~~
kas.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     scanf("%d", &N);
      |     ~~~~~^~~~~~~~~~
kas.cpp:30:39: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     for (int i = 1; i <= N; ++i) scanf("%d", C + i), sumVal += C[i];
      |                                  ~~~~~^~~~~~~~~~~~~

• 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