题意:有n个抢劫者抢劫了m块金子,然后第i个人平分xi/y块金子,但是会有除不尽的情况而金子不可再分,那么每个人都有一个不满意度fabs(xi / y - ki/m),ki是每个人实际分得的金子数量,要保证所有人的不满意度和最小,问ki应如何分配。
题解:如果可以除尽,ki就是xi * m / y,否则要把不满意度和再多分一块金子的不满意度的差值存起来,按从大到小排序,把多出来的金子数量num给前num个人多分一块。

#include <cstdio>
#include <cstring>
#include <cmath>
#include <algorithm>
using namespace std;
const int INF = 0x3f3f3f3f;
const int N = 1005;
struct P {
    int id;
    double re;
}p[N];
int n, m, y, x[N], res[N], flag[N], cnt;

bool cmp(P a, P b) {
    return a.re > b.re;
}

double Count(int i) {
    return fabs(x[i] * 1.0 / y - res[i] * 1.0 / m) - fabs(x[i] * 1.0 / y - (res[i] + 1) * 1.0 / m);
}

void solve(int num) {
    cnt = 0;
    for (int i = 0; i < n; i++) {
        if (!flag[i]) {
            p[cnt].re = Count(i);
            p[cnt++].id = i;
        }
    }
    sort(p, p + cnt, cmp);
    for (int i = 0, j = num; j > 0; i++, j--)
        res[p[i].id]++;
}

int main() {
    while (scanf("%d%d%d", &n, &m, &y) == 3) {
        for (int i = 0; i < n; i++)
            flag[i] = 0;
        int num = m;
        for (int i = 0; i < n; i++) {
            scanf("%d", &x[i]);
            if ((m * x[i]) % y == 0) {
                res[i] = (m * x[i]) / y;

                flag[i] = 1;
            }
            else {
                res[i] = (m * x[i]) / y;
            }
            num -= res[i];
        }
        solve(num);
        printf("%d", res[0]);
        for (int i = 1; i < n; i++)
            printf(" %d", res[i]);
        printf("\n");
    }
    return 0;
}