本系列博客为个人刷题思路分享,有需要借鉴即可。
1.目录大纲:
2.题目链接:
- 统计成绩 00:00:00⸺00:09:00题号:BC33 链接:https://www.nowcoder.com/practice/
cad8d946adf64ab3b17a555d68dc0bba?tpId=290&tqId=39821&ru=/exam/oj - 密码验证 00:09:00⸺00:15:11题号:(⽆)链接:https://www.nowcoder.com/question
Terminal/df51b60733c94e6fbb0b18fbbf45d76a - 矩阵计算 00:15:11⸺00:20:30题号:BC132 链接:nowcoder.com/practice/0c83231923
c541d2aa15861571831ee5?tpId=290&tqId=39920&ru=/exam/oj - 逆序输出 00:20:30⸺00:24:50 题号:BC117 链接:https://www.nowcoder.com/practic
e/bb66c27cb7aa48f9ba7d9f88e4068285?tpId=290&tqId=39905&ru=/exam/oj - 统计数据正负个数 00:24:50⸺00:29:35题号:BC62 链接:https://www.nowcoder.com/
practice/3f33889582934a09b4e3ddd3cc976226?tpId=290&tqId=39850&ru=/exam/oj - N个数之和 没讲 题号:BC118 链接:https://www.nowcoder.com/practice/b007744eb43b4f7b9
5d9e87de01528db?tpId=290&tqId=39906&ru=/exam/oj - 最低分和最⾼分之差 00:30:11⸺00:34:25题号:BC119 链接:https://www.nowcoder.co
m/practice/e0e4f81dcd55408a8973f8033bbeb1d2?tpId=290&tqId=39907&ru=/exam/oj - 有序序列判断 00:34:25⸺00 :44:50题号:BC122 链接:https://www.nowcoder.com/pra
ctice/22e87f8a8d764a6582710f38d1b40c6e?tpId=290&tqId=39910&ru=/exam/oj - 序列中删除指定数字 00:44:50⸺01:00:05 题号:BC124 链接:https://www.nowcoder.co
m/practice/7bbcdd2177a445a9b66da79512b32dd7?tpId=290&tqId=39912&ru=/exam/oj - 序列整数去重 01:00:05⸺01:17:50题号:BC125 链接:https://www.nowcoder.com/pr
actice/6564a2f6e70f4153ad1ffd58b2b28490?tpId=290&tqId=39913&ru=/exam/oj - 有序序列合并:01:17:50⸺01:34:55 题号:BC121 链接:https://www.nowcoder.com/p
ractice/a9e943b0dab142759807d0cfb6863897?tpId=290&tqId=39909&ru=/exam/oj
3.详解思路:
T1:
#include <stdio.h>
int main()
{
int n = 0;
scanf("%d",&n);
double min = 100;
double max = 0;
double average = 0;
double sum = 0;
double x = 0;
for(int i = 0;i<n;i++)
{
scanf("%lf",&x);
if(x>max)
max = x;
if(x<min)
min = x;
sum+=x;
}
average = sum/n;
printf("%.2lf %.2lf %.2lf\n",max,min,average);
return 0;
}
T2:
#include <stdio.h>
#include<string.h>
int main() {
char ch1[20] = {0};
char ch2[20] = {0};
//读取
scanf("%s",ch1);
scanf("%s",ch2);
//比较
if(strcmp(ch1,ch2)==0)
{
printf("same\n");
}
else {
{
printf("different\n");
}
}
return 0;
}
T3:
#include <stdio.h>
int main() {
int n = 0;
int m = 0;
scanf("%d %d",&n,&m);
int i = 0;
int sum = 0;
int data = 0;
//读入数据
for(i = 0;i<n*m;i++)
{
scanf("%d",&data);
if(data>=0)
{
sum+=data;
}
}
printf("%d\n",sum);
return 0;
}
T4:
#include <stdio.h>
int main() {
int i = 0;
int arr[10] = {0};
//读入
for(i = 0;i<10;i++)
{
scanf("%d",&arr[i]);
}
//输出
for(i = 0;i<10;i++)
{
printf("%d ",arr[10-i-1]);
}
return 0;
}
T5:
#include <stdio.h>
int main()
{
int arr[10] = {0};
int i = 0;
int p = 0;
int n = 0;
for(i = 0;i<10;i++)
{
scanf("%d",&arr[i]);
if(arr[i]>0)
p++;
else
n++;;
}
printf("positive:%d\nnegative:%d\n",p,n);
return 0;
}
T6:
#include <stdio.h>
int main() {
int n = 0;
scanf("%d",&n);
int i = 0;
int data = 0;
int sum = 0;
for(i = 0;i<n;i++)
{
scanf("%d",&data);
sum+=data;
}
printf("%d\n",sum);
return 0;
}
T7:
#include <stdio.h>
int main() {
int n = 0;
scanf("%d",&n);
int max = 0;
int min = 100;
int data = 0;
//读入
int i = 0;
for(i = 0;i<n;i++)
{
scanf("%d",&data);
if(data>max)
max = data;
if(data<min)
min = data;
}
printf("%d\n",max-min);
return 0;
}
T8:
#include <stdio.h>
int main() {
int n = 0;
scanf("%d",&n);
int arr[50] = {0};
int on = 0;//升序标识符
int under = 0;//降序标识符
int i = 0;
for(i = 0;i<n;i++)
{
scanf("%d",&arr[i]);
if(i>0)
{
if(arr[i]>arr[i-1])
on = 1;
else if(arr[i]<arr[i-1])
under = 1;
}
}
//if on+under>1 乱序
//if on+under ==1 升序/降序
if(on+under>1)
printf("unsorted\n");
else
{
printf("sorted\n");
};
return 0;
}
T9:
#include <stdio.h>
int main() {
int n = 0;
scanf("%d",&n);
//读入数据
int i = 0;
int arr[50] = {0};
for(i = 0;i<n;i++)
{
scanf("%d",&arr[i]);
}
int m = 0;
scanf("%d",&m);
int count = n;//计数器
//遍历数组
for(i = 0;i<count;i++)
{
//遍历数组找到了要删除的数据
if(m==arr[i])
{
//删除数据(后面的数据往前挪动一位)
int j = 0;
for(j = i+1;j<n;j++)
{
arr[j-1] = arr[j];
}
i--;
count--;
}
}
//打印
for(i = 0;i<count;i++)
{
printf("%d ",arr[i]);
}
return 0;
}
T10:
#include <stdio.h>
int main() {
int n = 0;
scanf("%d",&n);
int arr[n];
//读取数据
int i = 0;
for(i = 0;i<n;i++)
{
scanf("%d",&arr[i]);
}
//去重
for(i = 0;i<n;i++)
{
int j = 0;
for(j = i+1;j<n;j++)
{
if(arr[i]==arr[j])
{
//挪动数据
int k = 0;
for(k = j+1;k<n;k++)
{
arr[k-1] = arr[k];
}
n--;//防止遗漏
j--;//计数
}
}
}
for(i = 0;i<n;i++)
{
printf("%d ",arr[i]);
}
return 0;
}
T11:
//思路1:存入数据,之后排序
#include<stdio.h>
int main()
{
int n, m;
scanf("%d %d\n", &n, &m);
int i, j, arr[2000];
int tmp;
//读入两个数组的数据
for (i = 0; i < n; i++)
{
scanf("%d ", &arr[i]);
}
for (i = n; i < n + m; i++)
{
scanf("%d ", &arr[i]);
}
//排序
for (i = 0; i < n + m; i++)
{
for (j = 0; j < n + m - i - 1; j++)
{
if (arr[j] > arr[j + 1])
{
tmp = arr[j];
arr[j] = arr[j + 1];
arr[j + 1] = tmp;
}
}
}
//打印
for (i = 0; i < n + m; i++)
{
printf("%d ", arr[i]);
}
}
//思路2:选择性放入一个新的数组
#include<stdio.h>
int main() {
int n = 0;
int m = 0;
scanf("%d %d", &n, &m);
int arr1[n];
int arr2[m];
int arr[n + m];
//读入数据
int i = 0;
for (i = 0; i < n; i++) {
scanf("%d", &arr1[i]);
}
for (i = 0; i < m; i++) {
scanf("%d", &arr2[i]);
}
//选择性放入
int j = 0;
int k = 0;
i = 0;
while (j < n && k < m) {
if (arr1[j] < arr2[k])
{
arr[i++] = arr1[j];
j++;
}
else
{
arr[i++] = arr2[k];
k++;
}
}
if(j==n)
{
while(k!=m)
arr[i++] = arr2[k++];
}
if(k==m)
{
while(j!=n)
{
arr[i++] = arr1[j++];
}
}
i = 0;
for(i = 0;i<m+n;i++)
{
printf("%d ",arr[i]);
}
}
完。