team olympiad codeforces solution
#include<bits/stdc++.h> using namespace std; int main() { int n,i,t1[5000],t2[5000],t3[5000],x=0,y=0,z=0,w,s; scanf("%d",&n); int a[n]; for(i=0;i<n;i++){ scanf("%d",&a[i]); } for(i=0;i<n;i++){ if(a[i]==1){ t1[x]=i+1; x++; } else if(a[i]==2){ t2[y]=i+1; y++; } else if(a[i]==3){ t3[z]=i+1; z++; } } s=min(x,y); w=min(s,z); printf("%d\n",w); for(x=0,y=0,z=0;x<w,y<w,z<w;x++,y++,z++){ printf("%d %d %d\n",t1[x],t2[y],t3[z]); } return 0; }
