제출 #384986

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
384986	2021-04-02 20:09:59	antontsiorvas	Fountain (eJOI20_fountain)	C++14	100 / 100	284 ms	26732 KiB

fountain

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#include <cstdio>
#include <vector>
#include <cmath>
#include <stack>
using namespace std;
int N, Q, diameter[100005], capacity[100005], dist[100005], up[100005][20], l, anc[20];
vector<int> edges[100005];
stack<int> st;
int node, water; 
void dfs(int v, int prev, int d){
  up[v][0] = prev;
  dist[v] = d + capacity[v];
  for(int i=1; i<=l; i++) up[v][i] = up[up[v][i-1]][i-1];
  for(int u : edges[v]){
    if(u == prev) continue;
    dfs(u,v,dist[v]);
  }
}
void fill(){
  for(int i=l; i>=0; i--){
    if(dist[node] - dist[up[node][i]] >= water) continue;
    water -= dist[node] - dist[up[node][i]];
    node = up[node][i];
  }
  printf("%d\n",node);
}
 
 
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컴파일 시 표준 에러 (stderr) 메시지

fountain.cpp: In function 'int main()':
fountain.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   32 |  scanf("%d%d",&N,&Q);
      |  ~~~~~^~~~~~~~~~~~~~
fountain.cpp:33:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   33 |  for(int i=1; i<=N; i++) scanf("%d%d",&diameter[i],&capacity[i]);
      |                          ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fountain.cpp:49:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   49 |   scanf("%d%d",&node,&water);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40