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24 lines
926 B
24 lines
926 B
#include <bits/stdc++.h>
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using namespace std;
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int x, y, z;
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int main() {
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cin >> x >> y >> z;
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int d[4] = {0, x, y, z};
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sort(d + 1, d + 3 + 1);
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if (d[1] + d[2] <= d[3]) {
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printf("Not triangle\n");
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return 0;
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}
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if (d[1] * d[1] + d[2] * d[2] == d[3] * d[3]) printf("Right triangle\n"); //直角三角形
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//在一个三角形中，如果较短的两条边的平方和大于最长边的平方，那么这个三角形是锐角三角形，否则它是钝角三角形。
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else if (d[1] * d[1] + d[2] * d[2] > d[3] * d[3]) printf("Acute triangle\n");//锐角三角形
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else if (d[1] * d[1] + d[2] * d[2] < d[3] * d[3]) printf("Obtuse triangle\n");//钝角三角形
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if (d[1] == d[2]) printf("Isosceles triangle\n");//等腰三角形
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if (d[1] == d[2] && d[1] == d[3] && d[2] == d[3]) printf("Equilateral triangle\n");//等边三角形
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return 0;
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} |