20 lines
583 B
C++
20 lines
583 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int k; //第k天付出多少个金币
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int coin; //多少个金币
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int day = 1; //现在是第几天
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int main() {
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cin >> k;
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for (int i = 1;; i++) { //此层循环描述的是第几轮
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for (int j = 1; j <= i; j++) { //此层循环描述是当前轮的第几天
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//金币数增加p个(轮次号个)
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coin += i;
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if (day == k) {
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cout << coin << endl;
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return 0;
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}
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day++;
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}
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}
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} |