#include<stdio.h>
int n,m;
int a[35][35][3];
int an[35];
double d[35][500105];
double la;
int main(){
int i,j,k,in1,in2,in3;
scanf("%d %d",&n,&m);
for(i=1;i<=m;i++){
scanf("%d %d %d",&in1,&in2,&in3);
a[in1][++an[in1]][0]=in2;
a[in1][an[in1]][1]=in3;
}
d[0][0]=1;
double op;
for(i=0;i<=250000;++i){
for(j=0;j<n;++j){
if(an[j]!=0){
op=d[j][i]/(double)an[j];
for(k=an[j];k>=1;--k)
d[a[j][k][0]][i+a[j][k][1]]+=op;
}
}
la+=d[n][i]*i;
}
printf("%lf",la);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Memory limit exceeded |
0 ms |
8192 KB |
Memory limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |