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@ -27,26 +27,32 @@ int main() {
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如果一下子没用了,就继续向后做同样的操作
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举栗子思考:
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3
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10 1 1
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3
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5 1 6
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3
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1 5 6
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*/
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for (int i = 1; i <= n; i++) {
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int d = a[i] - avg; // 差值,注意:这个差值可能是正的,也可能是负的
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total += d;
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total += abs(d);
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int j = i + 1;
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while (d != 0 && j <= n) {
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// 向后找出,比avg小的
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// 向后找比avg小的
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if (d > 0 && a[j] < avg) {
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int x = min(d, avg - a[j]);
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int x = min(abs(d), avg - a[j]);
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a[i] -= x;
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a[j] += x;
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d -= x;
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}
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// 向后找出,比avg大的
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// 向后找比avg大的
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if (d < 0 && a[j] > avg) {
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int x = min(d, a[j] - avg);
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int x = min(abs(d), a[j] - avg);
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a[i] += x;
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a[j] -= x;
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d += x;
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