Submission #955560

#	Time	Username	Problem	Language	Result	Execution time	Memory
955560		Prieved1	Overtaking (IOI23_overtaking)	C++17	0 / 100	1 ms	348 KiB

overtaking

#include "overtaking.h"
#include <bits/stdc++.h>
using namespace std;
int 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]+(S[i]-S[i-1])*W[j];
    }
    if(i){
      for(int j = 0;j<N;j++){
        for(int k = 0;k<N;k++) {
          if(ta[i-1][j]>ta[i-1][k])ta[i][j]=max(ta[i][j], ta[i][k]);
        }
      }
    }
  }
}

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:30:18: 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]
   30 |   for(int i = 1;i<ta.size();i++) {
      |                 ~^~~~~~~~~~
overtaking.cpp:32:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     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