Submission #111377

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
111377	2019-05-15 04:06:06	diamond_duke	Boat (APIO16_boat)	C++11	36 / 100	2045 ms	4472 KiB

boat

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#include <algorithm>
#include <cstring>
#include <cstdio>
using ll = long long;
constexpr int MOD = 1e9 + 7;
inline int quick_pow(int a, int n)
{
  int res = 1;
  while (n)
  {
    if (n & 1)
      res = (ll)res * a % MOD;
    a = (ll)a * a % MOD;
    n >>= 1;
  }
  return res;
}
int lp[505], rp[505], app[1005], dp[2][1005][505], inv[505];
int main()
{
  // freopen("uoj-204.in", "r", stdin);
  int n, cnt = 0;
  scanf("%d", &n);
  for (int i = 0; i < n; i++)
  {
    scanf("%d%d", lp + i, rp + i);
    app[cnt++] = lp[i];
    app[cnt++] = ++rp[i];
  }
  std::sort(app, app + cnt);
 
 
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Compilation message (stderr)

boat.cpp: In function 'int main()':
boat.cpp:43:36: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
   auto cur = dp[i & 1], nxt = dp[i & 1 ^ 1];
                                  ~~^~~
boat.cpp:23:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
boat.cpp:26:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", lp + i, rp + i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 0 / 22
• Subtask 3: 27 / 27
• Subtask 4: 0 / 42