Submission #807244

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
807244	2023-08-04 15:12:52	Andrey	Stations (IOI20_stations)	C++14	100 / 100	838 ms	1280 KiB

stations

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#include "stations.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> yay(0);
vector<int> haha[10001];
vector<int> st(10001);
void dfs(int a, int t) {
    st[a] = 1;
    for(int i = 0; i < haha[a].size(); i++) {
        if(haha[a][i] != t) {
            dfs(haha[a][i],a);
            st[a]+=st[haha[a][i]];
        }
    }
}
void dude(int a, int t, int d, int l, int r) {
    if(d%2) {
        yay[a] = r;
        r--;
    }
    else {
        yay[a] = l;
        l++;
    }
    for(int i = 0; i < haha[a].size(); i++) {
        if(haha[a][i] != t) {
            dude(haha[a][i],a,d+1,l,l+st[haha[a][i]]-1);
 
 
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Compilation message (stderr)

stations.cpp: In function 'void dfs(int, int)':
stations.cpp:11:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for(int i = 0; i < haha[a].size(); i++) {
      |                    ~~^~~~~~~~~~~~~~~~
stations.cpp: In function 'void dude(int, int, int, int, int)':
stations.cpp:28:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i = 0; i < haha[a].size(); i++) {
      |                    ~~^~~~~~~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:69:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |         for(int i = 1; i < c.size(); i++) {
      |                        ~~^~~~~~~~~~
stations.cpp:70:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |             if(t >= c[i] && (i == c.size()-1 || t < c[i+1])) {
      |                              ~~^~~~~~~~~~~~~
stations.cpp:77:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |             for(int i = 0; i < c.size(); i++) {
      |                            ~~^~~~~~~~~~
stations.cpp:90:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |             for(int i = 0; i < c.size()-1; i++) {
      |                            ~~^~~~~~~~~~~~
stations.cpp:98:1: warning: control reaches end of non-void function [-Wreturn-type]
   98 | }
      | ^

• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61