#include <bits/stdc++.h>
#define ll long long
using namespace std;
int N, M;
vector <pair <int, int>> VG[200002];
int V[200002], DIST[200002], SIZE[200002];
ll SUM[200002];
bitset <200002> B;
long double O[200002];
void DFS(int node, int root)
{
V[node] = root;
SUM[node] = 0;
SIZE[node] = 1;
for(pair <int, int> p : VG[node])
{
if(V[p.second] != root)
{
DIST[p.second] = DIST[node] + p.first; DFS(p.second, root);
SUM[node] += SIZE[p.second] * p.first + SUM[p.second];
SIZE[node] += SIZE[p.second];
}
else if((DIST[node] + p.first) != DIST[p.second]) {cout << "NO\n"; exit(0);}
}
return;
}
pair <ll, int> DFSMIN(int node, int root, ll sum = 0)
{
V[node] = root;
pair <ll, int> ret = {sum + SUM[node], node};
for(pair <int, int> p : VG[node])
{
if(V[p.second] == root) continue;
ret = min(DFSMIN(p.second, root, sum + (N - SIZE[p.second]) * p.first), ret);
}
return ret;
}
void DFSO(int node)
{
B[node] = 1;
for(pair <int, int> p : VG[node])
{
if(B[p.second]) continue;
O[p.second ^ 1] = -(O[p.second] = O[node] + p.first);
DFSO(p.second);
}
return;
}
int main()
{
ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
cout << setprecision(6) << fixed;
cin >> N >> M;
int u, v, w;
for(int i = 1; i <= M; i++)
{
cin >> u >> v >> w;
VG[u << 1 | 1].push_back({-w, v << 1});
VG[v << 1].push_back({+w, u << 1 | 1});
VG[v << 1 | 1].push_back({-w, u << 1});
VG[u << 1].push_back({+w, v << 1 | 1});
}
for(int i = 2; i <= (N << 1 | 1); i++) if(!V[i]) DFS(i, i);
for(int i = 1; i <= N; i++)
{
if(B[i << 1] || B[i << 1 | 1]) continue;
if(V[i << 1] == V[i << 1 | 1])
{
DFS(i << 1, i << 1);
O[i << 1 | 1] = DIST[i << 1 | 1] / 2.0;
DFSO(i << 1 | 1);
continue;
}
DFSO(DFSMIN(V[i << 1], -V[i << 1]).second);
}
cout << "YES\n";
for(int i = 1; i <= N; i++) cout << O[i << 1 | 1] << " \n"[i == N];
return 0;
}
