Submission #200501

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
200501	2020-02-07 01:57:15	arnold518	Triple Jump (JOI19_jumps)	C++14	100 / 100	1078 ms	89104 KiB

jumps

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 5e5;
const ll INF = 1e18;
int N, Q;
ll A[MAXN+10], B[MAXN+10], ans[MAXN+10];
vector<pii> V;
struct Query { int l, r, p; };
Query query[MAXN+10];
struct Node
{
  ll A, B, BA;
  Node() : A(-INF), B(-INF), BA(-INF) {}
};
Node add(Node lc, Node rc)
{
  Node ret;
  ret.BA=max({lc.BA, rc.BA, lc.B+rc.A});
  ret.A=max(lc.A, rc.A);
  ret.B=max(lc.B, rc.B);
  return ret;
 
 
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Compilation message (stderr)

jumps.cpp: In function 'void init(int, int, int)':
jumps.cpp:44:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
jumps.cpp: In function 'void update(int, int, int, int)':
jumps.cpp:59:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
jumps.cpp: In function 'Node qquery(int, int, int, int, int)':
jumps.cpp:69:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
jumps.cpp: In function 'int main()':
jumps.cpp:98:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(; j<V.size() && V[j].first==i; j++)
         ~^~~~~~~~~
jumps.cpp:76:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
jumps.cpp:77:42: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=N; i++) scanf("%lld", &A[i]), B[i]=-INF;
                      ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
jumps.cpp:78:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &Q);
  ~~~~~^~~~~~~~~~
jumps.cpp:79:61: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=Q; i++) scanf("%d%d", &query[i].l, &query[i].r), query[i].p=i;
                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 27 / 27
• Subtask 4: 54 / 54