百练 1658 Eva's Problem

题目链接：http://bailian.openjudge.cn/practice/1658

# include <stdio.h>int main(){int i,n[6];int t;scanf("%d",&t);while(t--){for(i=0;i<4;i++)scanf("%d",&n[i]);if((n[2]/n[1])==(n[1]/n[0])){n[4]=n[3]*(n[1]/n[0]);}if((n[2]-n[1])==(n[1]-n[0])){n[4]=n[0]+(n[1]-n[0])*4;}printf("%d",n[0]);for(i=1;i<5;i++)printf(" %d",n[i]);printf("\n");}return 0;}