Submission #81785

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
81785	2018-10-26 14:25:11	tjdgus4384	두 로봇 (KOI18_robot)	C++14	100 / 100	111 ms	56968 KiB

robot

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#include<cstdio>
#include<vector>
#include<queue>
#include<string.h>
#include<algorithm>
#define INF 1000000000
using namespace std;
vector<pair<int, int> > v[100001];
int dist[100001];
pair<int, int> pa[100001];
int main()
{
    int n, s, e, a, b, c;
    scanf("%d %d %d", &n, &s, &e);
    for(int i = 1;i < n;i++)
    {
        scanf("%d %d %d", &a, &b, &c);
        v[a].push_back({b, c});
        v[b].push_back({a, c});
    }
    if(s == e)
    {
        printf("0");
        return 0;
    }
    priority_queue<pair<int, pair<int, pair<int, int> > >, vector<pair<int, pair<int, pair<int, int> > > >, greater<pair<int, pair<int, pair<int, int> > > > > pq;
    fill(dist, dist + n + 1, INF);
    pq.push({0, {s, {s, 0}}});
 
 
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Compilation message (stderr)

robot.cpp: In function 'int main()':
robot.cpp:44:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0;i < v[curr].size();i++)
                       ~~^~~~~~~~~~~~~~~~
robot.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d", &n, &s, &e);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
robot.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", &a, &b, &c);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 17 / 17
• Subtask 2: 19 / 19
• Subtask 3: 23 / 23
• Subtask 4: 41 / 41