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#include <fstream>
#include <vector>
#include <algorithm>
using namespace std;
vector<int> heap;
vector< pair<int , int> > G[50001];
int x , y , c , n , m;
int d[50001];
bool cmp(const int& a , const int& b)
{
return d[a] > d[b];
}
class parser{
public:
parser() {}
parser(const char *file_name){
input_file.open(file_name,ios::in | ios::binary);
input_file.sync_with_stdio(false);
index&=0;
input_file.read(buffer,SIZE);}
inline parser &operator >>(int &n){
for (;buffer[index]<'0' or buffer[index]>'9';inc());
n&=0;
sign&=0;
sign|=(buffer[index-1]=='-');
for (;'0'<=buffer[index] and buffer[index]<='9';inc())
n=10*n+buffer[index]-'0';
n^=((n^-n)&-sign);
return *this;}
~parser(){
input_file.close();}
private:
fstream input_file;
static const int SIZE=0x200000; ///2MB
char buffer[SIZE];
int index,sign;
inline void inc(){
if(++index==SIZE)
index=0,input_file.read(buffer,SIZE);}
};
class writer{
public:
writer() {};
writer(const char *file_name){
output_file.open(file_name,ios::out | ios::binary);
output_file.sync_with_stdio(false);
index&=0;}
inline writer &operator <<(int target){
aux&=0;
sign=1;
if (target<0)
sign=-1;
n=target;
if (n==0)
nr[aux++]='0';
for (;n;n/=10)
nr[aux++]=(sign*n)%10+'0';
if (sign==-1)
buffer[index]='-',inc();
for(;aux;inc())
buffer[index]=nr[--aux];
return *this;}
inline writer &operator <<(const char *target){
aux&=0;
while (target[aux])
buffer[index]=target[aux++],inc();
return *this;}
~writer(){
output_file.write(buffer,index);output_file.close();}
private:
fstream output_file;
static const int SIZE=0x200000; ///2MB
int index,aux,n,sign;
char buffer[SIZE],nr[24];
inline void inc(){
if(++index==SIZE)
index&=0,output_file.write(buffer,SIZE);}
};
parser f("dijkstra.in");
writer g("dijkstra.out");
int main()
{
f >> n >> m;
for(int i = 1; i <= m; ++i)
{
f >> x >> y >> c;
G[x].push_back(make_pair(y,c));
// G[y].push_back(make_pair(x,c));
}
int startNode = 1;
for(int i = 1; i <= n; ++i) d[i] = 1 << 25;
d[startNode] = 0;
heap.push_back(startNode);
while(heap.size())
{
int node = heap.front();
pop_heap(heap.begin() , heap.end() , cmp);
heap.pop_back();
for(const auto &iter : G[node])
if(d[iter.first] > d[node] + iter.second)
{
d[iter.first] = d[node] + iter.second;
heap.push_back(iter.first);
push_heap(heap.begin() , heap.end() , cmp);
}
}
for(int i = 2; i <= n; ++i)
{
if(d[i] == 1 << 25) d[i] = 0;
g << d[i] << " ";
}
return 0;
}