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全部文章（共72篇）

题解 | 统计数据正负个数

#include <stdio.h> int main() { int positive = 0, negative = 0; for (int i = 0; i < 10; i++) { int num; scanf(&quo...

2026-03-12

0 7

题解 | 乘法表

#include <stdio.h> int main() { for (int i = 1; i <= 9; i++) {//外层循环用于控制行数 for (int j = 1; j <= i; j++) {//内层循环，用于控制列数 ...

2026-03-12

0 8

题解 | 矩阵计算

#include <stdio.h> int main() { int N, M; scanf("%d %d", &N,&M);//读取矩阵行数N、列数M int sum = 0;//初始化正数累加和 for...

2026-03-12

0 6

题解 | 最高身高

#include <stdio.h> int main() { int n, m;//n行,m列 scanf("%d %d", &n,&m);//读取矩阵行列数 int max_height = -1;//身高只能是正数，初...

2026-03-12

0 8

题解 | 牛牛学数列4

#include <stdio.h> //暴力计算，时间复杂度为O(n的平方) int main() { int n; scanf("%d",&n); long long sum = 0; for (int i = 1; i ...

2026-03-11

0 8

题解 | 牛牛学数列4

#include <stdio.h> //我居然没有想到找公式 int main() { int n; scanf("%d",&n); long long sum = (long long)n * (n+1) * (n+2) / 6;...

2026-03-11

0 8

题解 | 最大的差

#include <stdio.h> #include <limits.h> int main() { int n, num; scanf("%d", &n); int min = INT_MAX; //把初始门...

2026-03-07

0 8

题解 | 23年OPPO-a的翻转

#include <stdio.h> int main() { long int a, oringinal_a, b = 0; scanf("%ld", &oringinal_a); a = oringinal_a;//原始值会改变，...

2026-02-07

0 29

题解 | 小乐乐算多少人被请家长

#include <stdio.h> int main() { int n, avg, count = 0; int c, m, e; scanf("%d",&n); for (int i = 0; i < n; i++...

2026-02-07

0 27

题解 | 数位之和

#include <stdio.h> #include <stdlib.h> int main() { long long input; scanf("%lld",&input); long long n = llabs(...

2026-02-06

0 34