#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<ll>;
using vvi = vector<vi>;
using p2 = pair<ll, ll>;
const ll inf = 1e18;
#define rep(i,n) for (ll i = 0; i < (n); i++)
#define repp(i,a,n) for (ll i = (a); i < (n); i++)
#define repe(i, arr) for (auto& i : arr)
#define all(x) begin(x),end(x)
#define sz(x) ((ll)(x).size())
void die() {
cout << "NO\n";
exit(0);
}
void dfs(int u, int p, vi& vis, vi& nodeval, vi& dep, vector<double>& compvals, vi& comp, vector<vector<p2>>& adj) {
comp.push_back(u);
vis[u]=1;
dep[u]=dep[p]+1;
repe(e, adj[u]) {
if (e.first==p) continue;
if (vis[e.first]) {
// cout << "non-tree:" << u << " " << e.first << '\n';
// even dep: +x
// odd dep: -x
if (dep[u]%2 != dep[e.first]%2) {
if (nodeval[u]+nodeval[e.first]!=e.second) {
// cout << u << " " << e.first << " " << nodeval[u] << " " << nodeval[e.first] << '\n';
// cerr << "DIE 2" << endl;
die();
}
}
else {
if (dep[u]%2==1) {
// cout << "odd dep" << '\n';
compvals.emplace_back((-e.second+nodeval[u]+nodeval[e.first])/2.0);
}
else {
// cout << "even dep" << '\n';
compvals.emplace_back((e.second-nodeval[u]-nodeval[e.first])/2.0);
}
}
}
else {
nodeval[e.first] = e.second-nodeval[u];
dfs(e.first,u,vis,nodeval,dep,compvals,comp,adj);
}
}
}
int main() {
cin.tie(0)->sync_with_stdio(0);
int n,m;
cin >> n >> m;
vector<vector<p2>> adj(n);
map<p2,int> color;
vvi self_edges(n);
rep(i,m) {
int a,b,c;
cin >> a >> b >> c;
a--; b--;
if (a==b) {
self_edges[a].push_back(c);
continue;
}
if (a>b) swap(a,b);
if (color.count(p2(a,b))) {
if (color[p2(a,b)]!=c) {
// cerr << "DIE 1" << endl;
die();
}
}
else {
adj[a].emplace_back(b,c);
adj[b].emplace_back(a,c);
}
color[p2(a,b)]=c;
}
vi vis(n);
vi nodeval(n);
vi dep(n);
vector<double> ans(n);
rep(i,n) {
if (vis[i]) continue;
vector<double> compvals;
dep[i]=-1;
vi comp;
auto get = [&](int u, double x) {
if (dep[u]%2==0) return x+nodeval[u];
return -x+nodeval[u];
};
dfs(i,i,vis,nodeval,dep,compvals,comp,adj);
repe(u,comp) {
repe(c,self_edges[u]) {
compvals.emplace_back(c/2.0);
}
}
if (sz(compvals)) {
if (sz(compvals)>1) {
double v1 = compvals[0];
repe(u,compvals) {
cerr << "Compval 1: " << compvals[0] << ", compval 2: " << u << '\n';
if (abs(u-v1)>1e-8) {
die();
}
}
}
repe(u,comp) {
ans[u]=get(u,compvals[0]);
}
}
else {
auto cost = [&](double x) {
double ret = 0;
repe(u,comp) ret += abs(get(u, x));
return ret;
};
double lo = -1e6;
double hi = 1e6;
rep(i,100) {
double l1 = lo+(hi-lo)/3;
double r1 = hi-(hi-lo)/3;
if (cost(l1)<cost(r1)) {
hi = r1;
}
else {
lo=l1;
}
}
repe(u,comp) {
ans[u]=get(u,lo);
}
}
}
cout << "YES\n";
cout << fixed << setprecision(15);
repe(u,ans) {
cout << u << " ";
}
cout << '\n';
return 0;
}
