Submission #96831

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
96831	2019-02-12 12:02:35	diamond_duke	조개 줍기 (KOI17_shell)	C++11	100 / 100	1072 ms	48504 KiB

shell

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#include <algorithm>
#include <cstring>
#include <cstdio>
using ll = long long;
int n;
struct BIT
{
  int seg[2005];
  BIT() { memset(seg, 0, sizeof(seg)); }
  inline void modify(int pos, int x)
  {
    for (; pos <= n; pos += pos & -pos)
      seg[pos] += x;
  }
  inline int query(int pos)
  {
    int res = 0;
    for (; pos; pos -= pos & -pos)
      res += seg[pos];
    return res;
  }
} seg[2005];
int dp[2005][2005], arr[2005][2005], st[2005], en[2005];
inline int query(int x, int y) { return dp[x][y] + seg[x].query(y); }
int main()
{
  // freopen("KOI2017-T4.in", "r", stdin);
  scanf("%d", &n);
  ll ans = 0;
  for (int i = 1; i <= n; i++)
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

shell.cpp: In function 'int main()':
shell.cpp:28:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
shell.cpp:34:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", arr[i] + j);
    ~~~~~^~~~~~~~~~~~~~~~~~
shell.cpp:44:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %c%d%d", &tp, &xx, &yy);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 34 / 34
• Subtask 3: 54 / 54