Submission #32278

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
32278	2017-10-06 05:59:07	cscandkswon	Kas (COCI17_kas)	C++14	50 / 100	2000 ms	394092 KiB

kas

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <cstdio>
#include <cstdlib>
#include <cstring>
const int MAXN = 503, INF=1e9, ZERO=100000;
int N, A[MAXN], S, ans, D[MAXN][200005];
inline int max(int a, int b) { return (a > b) ? a : b; }
int func(int a, int d) {
  if (abs(d - ZERO) > (S / 2)) return -INF;
  if (a == N) {
    if (d == ZERO) return 0;
    return -INF;
  }
  if (D[a][d] >= 0) return D[a][d];
  D[a][d] = max(func(a + 1, d), max(func(a + 1, d + A[a]) + A[a], func(a + 1, d - A[a])));
  return D[a][d];
}
int main() {
  memset(D, -1, sizeof D);
  int i;
  scanf("%d", &N);
  for (i = 0; i < N; i++) 
    scanf("%d", A + i), S+=A[i];
  ans = func(0, ZERO);
  printf("%d", ans + (S - ans * 2));
  return 0;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

kas.cpp: In function 'int main()':
kas.cpp:24:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
                 ^
kas.cpp:26:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", A + i), S+=A[i];
                              ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10