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python/TangDou/XiTi/1347.cpp
HuangHai 1f397eca87 'commit'
2025-08-30 18:35:01 +08:00

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#include <bits/stdc++.h>
using namespace std;
int main() {
//税后所得为T元,税前工资S
int T, S, A;
cin >> T; //9255,目标反向求得S
//通过除100再乘100成功将十位和个位去掉保留百位以前的数字
S = T;
S /= 100;
S *= 100;
//以100为增量向上加找到结果
for (;; S += 100) {
int sum = 0;
A = S - 3500;
if (A <= 0) break;
//A中不超过1500元的部分税率3%
if (A >= 1500) sum += 1500 * 0.03;
if (A < 1500 && A > 0) sum += A * 0.03;
//A中超过1500元未超过4500元的部分税率10%
if (A >= 4500) sum += (4500 - 1500) * 0.1;
if (A > 1500 && A < 4500) sum += (A - 1500) * 0.1;
//A中超过4500元未超过9000元的部分税率20%
if (A >= 9000) sum += (9000 - 4500) * 0.2;
if (A > 4500 && A < 9000) sum += (A - 4500) * 0.2;
//A中超过9000元未超过35000元的部分税率25%
if (A >= 35000) sum += (35000 - 9000) * 0.25;
if (A > 9000 && A < 35000) sum += (A - 9000) * 0.25;
//A中超过35000元未超过55000元的部分税率30%
if (A >= 55000) sum += (55000 - 35000) * 0.3;
if (A > 35000 && A < 55000) sum += (A - 35000) * 0.3;
//A中超过55000元未超过80000元的部分税率35%
if (A >= 80000) sum += (80000 - 55000) * 0.35;
if (A > 55000 && A < 80000) sum += (A - 55000) * 0.35;
//A中超过80000元的部分税率45%
if (A >= 80000) sum += (A - 80000) * 0.45;
if (S - sum >= T)break;
}
cout << S << endl;
return 0;
}