Program for queue and vector, C/C++ Programming

Assignment Help:

#include

#include

#include

using namespace std;

#define MAX 5

#define INF (1<<20)

#define DEBUG if(0)

#define pii pair< int, int >

#define pb(x) push_back(x)

class Node

{

int id:

int p[1][2];

class Node *next[5];

 bool operator() (const pii &a, const pii &b)

{

        return a.second > b.second;

 } ;

priority_queue< pii, vector< pii >, Node > Q;

vector< pii > G[MAX];

int D[MAX];

bool F[MAX];

int main()

{

int i, u, v, w, sz, nodes, edges, starting;

// create graph

cin >> nodes >> edges;

for(i=0; i

{

cin>> u >> v >> w;

G[u].pb(pii(v, w));

G[v].pb(pii(u, w)); // for undirected

}

cin >> starting;

for(i=1; i<=nodes; i++) D[i] = INF;

D[starting] = 0;

Q.push(pii(starting, 0));

while(!Q.empty())

{

   u = Q.top().first;

   Q.pop();

   if(F[u]) continue;

  sz = G[u].size();

  DEBUG cout<<"visiting from "<< u;

  for(i=0; i

{

        v = G[u][i].first;

         w = G[u][i].second;

         if(!F[v] && D[u]+w < D[v])

                {

                 DEBUG cout<<  v;

                 D[v] = D[u] + w;

                 Q.push(pii(v, D[v]));

                 }

         }

DEBUG cout << "\n";

F[u] = 1;

}

for(i=1; i<=nodes; i++)

cout << "Node"<< i<< "min weight"<<  D[i]);

return 0;

}


Related Discussions:- Program for queue and vector

Minimumshelf, At a shop of marbles, packs of marbles are prepared. Packets ...

At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with thes

What does extern "c" int func(int *, A: This will turn o_ "name mangling" f...

A: This will turn o_ "name mangling" for func so that one can connect to code compiled by a C compiler.

Explain the working of array with strings, Explain the working of Array wit...

Explain the working of Array with Strings? A string is defined in C language as an array of characters. A null character (‘\0') is automatically added to the end of the charact

Explain integer literal, Integer literal Integer is numbers without fra...

Integer literal Integer is numbers without fractional parts. e.g. 20       // Decimal 024      // Octal     0x14     // Hexadecimal To indicate long, unsigned,

Data Handling in computers, though the ascii is called 7-bit code. why do w...

though the ascii is called 7-bit code. why do we use 8-bits to represent a character?

C program to demonstrate pointer to array, C program to demonstrate Pointer...

C program to demonstrate Pointer to array: void p2a(int *); void main() {                 int x=10, *a,**b;                 int arr[5];                 a=&x;//po

A palindrome is a string that reads the same from both the e, submitting so...

submitting solutions in C language should not use functions from / as these files do not exist in gcc

Introduction to c, All languages are divided into six sections: - variables...

All languages are divided into six sections: - variables, I/O maths, conditional expressions, arrays, functions, subroutines and file handlers. Learning a software language is simi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd