oj.uz

Submission #432659

# Submission time Handle Problem Language Result Execution time Memory
432659 2021-06-18T12:12:07 Z inwbear Bridges (APIO19_bridges) C++14
13 / 100
 153 ms 488 KB 
#include <bits/stdc++.h>
using namespace std;
int n,m,pa[1005][3],qq,a,b,c,ans;
bool vis[1005];
vector<pair<int,int> >v[1005];
queue<int>q;
int main()
{
    //freopen("test.cpp","r",stdin);
    scanf("%d %d",&n,&m);
    for(int i=1;i<=m;i++)
    {
        scanf("%d %d %d",&pa[i][0],&pa[i][1],&pa[i][2]);
    }
    scanf("%d",&qq);
    while(qq--)
    {
        scanf("%d %d %d",&a,&b,&c);
        if(a==1)
        {
            pa[b][2]=c;
        }
        else
        {
            ans=0;
            for(int i=1;i<=n;i++)v[i].clear(),vis[i]=false;
            for(int i=1;i<=m;i++)v[pa[i][0]].push_back({pa[i][1],pa[i][2]}),v[pa[i][1]].push_back({pa[i][0],pa[i][2]});
            q.push(b);
            while(!q.empty())
            {
                ans++;
                a=q.front();
                q.pop();
                for(int i=0;i<v[a].size();i++)
                {
                    if(!vis[v[a][i].first]&&c<=v[a][i].second)
                    {
                        vis[v[a][i].first]=true;
                        q.push(v[a][i].first);
                    }
                }
            }
            printf("%d\n",max(ans-1,1));
        }
    }
}

Compilation message

bridges.cpp: In function 'int main()':
bridges.cpp:34:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |                 for(int i=0;i<v[a].size();i++)
      |                             ~^~~~~~~~~~~~
bridges.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf("%d %d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~
bridges.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         scanf("%d %d %d",&pa[i][0],&pa[i][1],&pa[i][2]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bridges.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     scanf("%d",&qq);
      |     ~~~~~^~~~~~~~~~
bridges.cpp:18:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         scanf("%d %d %d",&a,&b,&c);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 153 ms 468 KB Output is correct
4 Correct 5 ms 460 KB Output is correct
5 Correct 18 ms 460 KB Output is correct
6 Correct 16 ms 444 KB Output is correct
7 Correct 20 ms 332 KB Output is correct
8 Correct 18 ms 460 KB Output is correct
9 Correct 22 ms 404 KB Output is correct
10 Correct 16 ms 440 KB Output is correct
11 Correct 16 ms 480 KB Output is correct
12 Correct 16 ms 468 KB Output is correct
13 Correct 27 ms 472 KB Output is correct
14 Correct 23 ms 460 KB Output is correct
15 Correct 29 ms 488 KB Output is correct
16 Correct 20 ms 400 KB Output is correct
17 Correct 19 ms 404 KB Output is correct

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 460 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 153 ms 468 KB Output is correct
4 Correct 5 ms 460 KB Output is correct
5 Correct 18 ms 460 KB Output is correct
6 Correct 16 ms 444 KB Output is correct
7 Correct 20 ms 332 KB Output is correct
8 Correct 18 ms 460 KB Output is correct
9 Correct 22 ms 404 KB Output is correct
10 Correct 16 ms 440 KB Output is correct
11 Correct 16 ms 480 KB Output is correct
12 Correct 16 ms 468 KB Output is correct
13 Correct 27 ms 472 KB Output is correct
14 Correct 23 ms 460 KB Output is correct
15 Correct 29 ms 488 KB Output is correct
16 Correct 20 ms 400 KB Output is correct
17 Correct 19 ms 404 KB Output is correct
18 Runtime error 1 ms 460 KB Execution killed with signal 11
19 Halted 0 ms 0 KB -