poj1555

简单题

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
using namespace std;

#define maxn 10

int f[maxn];

void input()
{
    for (int i = 1; i < 9; i++)
        scanf("%d", &f[i]);
}

void print()
{
    char ch[2];
    ch[0] = '+';
    ch[1] = '-';
    int i = 0;
    while (i < 9 && f[i] == 0)
        i++;
    if (i >= 9)
    {
        printf("0\n");
        return;
    }
    if (i == 8)
    {
        printf("%d\n", f[8]);
        return;
    }
    if (f[i] < 0)
        putchar('-');
    if (abs(f[i]) > 1)
        printf("%d", abs(f[i]));
    putchar('x');
    if (8 - i > 1)
        printf("^%d", 8 - i);
    i++;
    for (; i < 8; i++)
        if (f[i])
        {
            printf(" %c ", ch[f[i] < 0]);
            if (abs(f[i]) > 1)
                printf("%d", abs(f[i]));
            putchar('x');
            if (8 - i > 1)
                printf("^%d", 8 - i);
        }
    if (f[i] != 0)
        printf(" %c %d", ch[f[i] < 0], abs(f[i]));
    putchar('\n');
}

int main()
{
    //freopen("t.txt", "r", stdin);
    while (scanf("%d", &f[0]) != EOF)
    {
        input();
        print();
    }
    return 0;
}