题目经验总结由于题目输入数据过多所以用scanf和printf方式比cin和cout方式省时间。记注意输出的格式要控制精度。C代码#includebits/stdc.husing namespace std;intmain(){intn;scanf(%d,n);doublenum[n];for(inti0;in;i){scanf(%lf,num[i]);}sort(num,numn);printf(%.f,num[n-1]);if(0n%2){doublezhong(num[n/2]num[n/2-1])/2;if((int)(zhong*10)%10){//中位数如果有小数printf( %.1f,zhong);}else{//中位数如果是整数printf( %.f,zhong);}}else{printf( %.f,num[n/2]);}printf( %.f,num[0]);return0;}