codeforces #165 div2

 // div2 A#include <stdio.h>int main(){    int i,j,n,T;    scanf("%d",&T);    while(T--){        scanf("%d",&n);        if(n>=180||n<=0){            printf("NO\n");            continue;        }        if (360%(180-n)==0) printf("YES\n");        else printf("NO\n");    }    return 0;} // div2 B#include<stdio.h>int x[100005];int main(){   // freopen("input.txt","r",stdin);  int n,i;  scanf("%d",&n);  int sum=0;  for(i=0;i<n;i++)     scanf("%d",&x[i]);     for(i=n-2;i>=0;i--)     if(x[i]>x[i+1])           break;  printf("%d\n",i+1);  return 0;}