PAT 天梯赛 L1-008. 求整数段和 【水】

题目链接

https://www.patest.cn/contests/gplt/L1-008

AC代码

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
using namespace std;

typedef long long LL;
const double PI = 3.14159265358979323846264338327;
const double E = 2.718281828459;
const double eps = 1e-6;
const int MAXN = 0x3f3f3f3f;
const int MINN = 0xc0c0c0c0;
const int maxn = 1e5 + 5;
const int MOD = 1e9 + 7;

int main()
{
    int a, b;
    cin >> a >> b;
    int sum = 0;
    int vis;
    for (vis = 1; a <= b; a++, vis++)
    {
        printf("%5d", a);
        sum += a;
        if (vis % 5 == 0)
            cout << endl;
    }
    if ((vis - 1) % 5 != 0)
        cout << endl;
    printf("Sum = %d\n", sum);
}