SDNUOJ 小部分题解

当时写的如 ** 一般，现在整理，一点一点规范…
1010

#include<stdio.h>
int main()
{
    int n, i, space, line, star;
    scanf("%d", &n);
    for(line = 1; line < 2 * n; line++)
    {
        if(line <= n)
            space = n - line;
        else
            space = line - n;
        star = n - space;
        for(i = 0; i < space; i++)
            printf(" ");
        for(i = 0; i < 2 * star - 1; i++)
            printf("*");
        printf("\n");
    }
    return 0;
}

1013

#include<cstdio>
#include<iostream>
#include<algorithm>
using namespace std;

bool compare(int a,int b)
{
    return a>b;
}

int main()
{
    int n;
    cin >> n;
    int a[10004];
    for(int i = 0;i < n;i++)
        cin >> a[i];
    sort(a, a + n, compare);
    long long sum = 0;
    int b[10004];
    b[0] = a[0];
    for(int i = 1; i < n; i++)
    {
        b[i] = b[i-1] + a[i];
        sum += b[i];
    }
    int d;
    d = sum % 1000000007;
    cout << d;
    return 0;
}

1014

#include<cstdio>
#include<iostream>
using namespace std;
int page(int n,int x)
{
    int sum = 0, a, k;
    for(int i = 1;( k = n / i) != 0;i *= 10)
    {
        int divide = (k / 10);
        if(x == 0)
            divide--;
        sum += divide * i;
        int yushu = k % 10;
        if(yushu > x)
            sum += i;
        else if(yushu == x)
            sum += n - k * i + 1;
    }
    return sum;
}
int main()
{
    int n;
    scanf("%d",&n);
    printf("%d %d %d %d %d %d %d %d %d %d",page(n, 0), page(n, 1), page(n, 2), page(n, 3), page(n, 4), page(n, 5), page(n, 6), page(n, 7), page(n, 8), page(n, 9));
    return 0;
}

1017

#include<cstdio>
#include<iostream>
#include<algorithm>
using namespace std;
int main()
{
    long long n, a[2000];
    while(scanf("%lld",&n) != EOF)
    {
        for(int i = 0; i < n; i++)
        {
            scanf("%lld", &a[i]);
        }
        sort(a, a + n);
        for(int i = 0; i < n; i++)
        {
            printf("%lld", a[i]);
            printf(" ");
        }
        printf("\n");
    }
    return 0;
}

1018

#include<stdio.h>
int main()
{
    char a[9999];
    int b = 0;
    int c = 0;
    int d = 0;
    scanf("%s", a);
    for(int i = 0; i < 10000; i++)
    {
        if(a[i] == 'W')
            b++;
        else
            c++;
        if(b == 3)
        {
            d = d + 1;
            b = 0;
            c = 0;
        }
        if(c == 3)
        {
            c = 0;
            b = 0;
        }
    }
    printf("%d",d);
    return 0;
}

1020

#include<stdio.h>
int main()
{
    int a,b,c;
    scanf("%d%c%d", &a, &b, &c);
    if(b == '+')
        printf("%d", a + c);
    else if(b == '-')
        printf("%d", a - c);
        else if(b == '*')
            printf("%d", a * c);
        else if(b == '/')
            printf("%d", a / c);
        return 0;
}

1021

#include<stdio.h>
int main()
{
    int n, z, l, a, b, c, d;
    a = 1;
    b = 1;
    c = 0;
    d = 0;
    scanf("%d", &n);
    scanf("%d%d", &z, &l);
    for(; n >= a ;)
    {
        if(a % z == 0)
            c = c + 1;
        a++;
    }
    for(; n >= b;)
    {
        if(b % l == 0 && b % z != 0)
            d = d + 1;
        b++;
    }
    printf("%d %d", c, d);
    return 0;
}