HDU 4505 小Q系列故事——电梯里的爱情

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hdu1008做了这题应该没啥问题


这道题需要注意相同楼层都会下,所以排一个序后,

后一项与前项比较,为正即上升,为负即为下降


当然还有格式,两个数之间有空格,不要在最后一个数后面有多余的空格



#include<stdio.h>

int main(void)
{
    int n, T, m, sum, temp, num[105];
    scanf("%d", &T);

    while (T--) {
        sum = 0;
        scanf("%d", &n);

        for (int i = 0; i < n; i++) {
            scanf("%d", &num[i]);
        }

        int min, minPos;
        for (int i = 0; i < n; i++) {
          min = num[i];
          minPos = i;
          for (int j = i+1; j < n; j++) {
            if (num[j] < min) {
              min = num[j];
              minPos = j;
            }
          }
          int temp = num[minPos];
              num[minPos] = num[i];
              num[i] = temp;
        }
        sum = num[0]*6+6;
        temp = num[0];
        for (int i = 1; i < n; i++) {
          if (num[i]-temp>0) {
              sum += (num[i]-temp)*6 + 6;
          } else if (temp-num[i] > 0) {
              sum += (temp-num[i])*4 + 6;
          } else if (temp == num[i]) {
              sum += 1;
          }
          temp = num[i];
        }
        printf("%d\n", sum + num[n-1]*4);

    }
    return 0;
}


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