Submission #955563

#	Time	Username	Problem	Language	Result	Execution time	Memory
955563		Prieved1	Overtaking (IOI23_overtaking)	C++17	0 / 100	1 ms	600 KiB

overtaking

#include "overtaking.h"
#include <bits/stdc++.h>
using namespace std;
long long speed;
vector<vector<long long>> ta;
vector<int> ss;
void init(int L, int N, std::vector<long long> T, std::vector<int> W, int X, int M, std::vector<int> S) {
  speed=X;
  ta=vector<vector<long long>> (M, vector<long long> (N));
  ss=S;
  for(int i = 0;i<M;i++) {
    for(int j = 0;j<N;j++) {
      if(i==0)ta[i][j]=T[j];
      else ta[i][j]=ta[i-1][j]+(long long)(S[i]-S[i-1])*W[j];
    }
    if(i){
      vector<pair<pair<long long, long long>, int>> idxx;
      for(int j = 0;j<N;i++) {
        idxx.push_back({{ta[i-1][j], -ta[i][j]}, j});
      }
      sort(idxx.begin(), idxx.end());
      for(int k = 1;k<N;k++) {
        ta[i][idxx[k].second]=min(ta[i][idxx[k].second], ta[i][idxx[k-1].second]);
      }
    }
  }
}

long long arrival_time(long long Y) {

  long long pr=Y;
  long long cur=pr;
  for(int i = 1;i<ta.size();i++) {
    cur+=(ss[i]-ss[i-1])*speed;
    for(int j = 0;j<ta[i].size();j++) {
      if(ta[i-1][j]<pr)cur=max(cur, ta[i][j]);
    }
    pr=cur;
  }
  return cur;
}

Compilation message (stderr)

overtaking.cpp: In function 'long long int arrival_time(long long int)':
overtaking.cpp:33:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |   for(int i = 1;i<ta.size();i++) {
      |                 ~^~~~~~~~~~
overtaking.cpp:35:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for(int j = 0;j<ta[i].size();j++) {
      |                   ~^~~~~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 0 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 20
• Subtask 4: 0 / 26
• Subtask 5: 0 / 35