What's wrong in my program??? Please, help me, I'm very upset...
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main(void)
{
// Input data and determine the result
int N;
cin >> N;
vector<int> prev(30);
fill(prev.begin(), prev.end(), 0);
int res=1000000000;
for(int i=0; i<N; ++i)
{
int amount;
cin >> amount;
vector<int> cur(30);
fill(cur.begin(), cur.end(), 1000000000);
for(int j=0; j<amount; ++j)
{
int planet;
while(cin >> planet && planet)
{
int cost;
cin >> cost;
cur[j]=min(cur[j], prev[planet-1]+cost);
res=min(res, cur[j]);
}
}
copy(cur.begin(), cur.end(), prev.begin());
if(i==N-1)
continue;
char ch[1];
while(cin.read(ch, 1) && ch[0]!='*');
}
cout << res << endl;
return 0;
}
