#include<stdio.h>
#include<stdlib.h>
#include<vector>
#define N 100001
#define M 400001
double a(double x){return x<0?-x:x;}
int n,m,head[N],fr[M],to[M],nxt[M],col[M],ii,vis[N],aa[N],bb[N],grp[N],got[N];
double xx[N];
std::vector<int> A[N];
void link(int u,int v,int c){
int i=++ii;
to[i]=v;
fr[i]=u;
col[i]=c;
nxt[i]=head[u];
head[u]=i;
}
void dfs(int u,int a,int b,int cp){
if(vis[u]){
if(a==aa[u]&&b!=bb[u])
exit(puts("NO")*0);
return;
}
grp[u]=cp;
A[cp].push_back(u);
vis[u]=1,aa[u]=a,bb[u]=b;
for(int j=head[u];j;j=nxt[j])
dfs(to[j],-a,col[j]-b,cp);
}
int main(){
scanf("%d%d",&n,&m);
for(int u,v,c,i=0;i<m;++i)scanf("%d%d%d",&u,&v,&c),link(u,v,c),link(v,u,c);
for(int i=1;i<=n;++i)
if(!vis[i])
dfs(i,1,0,i);
for(int j=1;j<ii;++j){
double a1=aa[fr[j]]+aa[to[j]],b1=bb[fr[j]]+bb[to[j]];
int gp=grp[fr[j]];
if(got[gp])continue;
if(a1==0&&b1!=col[j])exit(puts("NO")*0);
if(b1==col[j]&&a1==0)continue;
int ok=1;
double x = (col[j]-b1)/a1;
for(int k=1;k<ii&&ok;++k){
if(grp[fr[k]]!=gp)continue;
if(aa[fr[k]]*x+bb[fr[k]]+aa[to[k]]*x+bb[to[k]] != col[k])ok=0;
}
if(ok)
xx[gp]=x,got[gp]=1;
}
for(int i=1;i<=n;++i){
if(got[grp[i]])continue;
double min=1e18,argmin=424242;
for(double f=-10000;f<=10000;f+=0.5){
double sum=0;
for(int j:A[grp[i]])sum+=a(aa[j]*f+bb[j]);
if(min>sum) min=sum,argmin=f;
}
got[i]=1;xx[grp[i]]=argmin;
}
puts("YES");
for(int i=1;i<=n;++i) printf("%.3f ",aa[i]*xx[grp[i]]+bb[i]);
}
Compilation message
Graph.c:3:9: fatal error: vector: No such file or directory
3 | #include<vector>
| ^~~~~~~~
compilation terminated.
