35 lines
856 B
C++
35 lines
856 B
C++
#include <bits/stdc++.h>
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using namespace std;
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const int INF = 0x3f3f3f3f;
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// 2760 r1
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// 4800 0.57
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// r3
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/**
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测试用例：
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2700 5000
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答案:
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1358.00
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*
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*/
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int l1 = 2760, l2 = 4800;
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double r1 = 0.52, r2 = 0.57, r3 = 0.82;
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int main() {
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int a, b;
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cin >> a >> b;
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if (a <= l1 && b <= l1)
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printf("%.2lf", (b - a) * r1);
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else if (a <= l1 && b <= l2 && b > l1)
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printf("%.2lf", (l1 - a) * r1 + (b - l1) * r2);
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else if (a <= l1 && b > l2)
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printf("%.2lf", (l1 - a) * r1 + (l2 - l1) * r2 + (b - l2) * r3);
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else if (a > l1 && b > l1 && a <= l2 && b <= l2)
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printf("%.2lf", (b - a) * r2);
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else if (a > l1 && a <= l2 && b > l2)
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printf("%.2lf", (l2 - a) * r2 + (b - l2) * r3);
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else if (a > l2 && b > l2)
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printf("%.2lf", (b - a) * r3);
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return 0;
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} |