#include <bits/stdc++.h>
using namespace std;
int N, M;
vector <pair <int, int>> VG[200002];
int V[200002], DIST[200002];
bitset <200002> B;
int O[200002];
void DFS(int node, int root)
{
V[node] = root;
for(pair <int, int> p : VG[node])
{
if(V[p.second] != root) {DIST[p.second] = DIST[node] + p.first; DFS(p.second, root);}
else if((DIST[node] + p.first) != DIST[p.second]) {cout << "NO\n"; exit(0);}
}
return;
}
void DFSV(int node, int root, vector <int> &U)
{
V[node] = root;
U.push_back(node);
for(pair <int, int> p : VG[node]) if(V[p.second] != root) DFSV(p.second, root, U);
return;
}
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 << 1));
DFSO(p.second);
}
return;
}
int main()
{
ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
cout << setprecision(10) << 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];
DFSO(i << 1 | 1);
}
else
{
vector <int> U;
DFSV(V[i << 1], -V[i << 1], U);
int l = -2 * (int)U.size(), r = +2 * (int)U.size(), s, ret;
int sum0 = 0, sum1 = 0;
while(l <= r)
{
s = (l + r) / 2;
for(int x : U) sum0 += abs(s + DIST[x]), sum1 += abs(s + 1 + DIST[x]);
if(sum0 > sum1) l = s + 1;
else {r = s - 1; ret = s;}
}
O[V[i << 1]] = -(O[V[i << 1] ^ 1] = ret);
DFSO(i << 1);
}
}
cout << "YES\n";
for(int i = 1; i <= N; i++) cout << (O[i << 1 | 1] / 2.0) << " \n"[i == N];
return 0;
}
