题目描述

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include[HTML_REMOVED]

using namespace std;

int main(){
double a, b, c, t;

scanf("%lf%lf%lf", &a, &b, &c);
if(a < b){
    t = a;
    a = b;
    b = t;
}
if(a < c){
    t = a;
    a = c;
    c = t;
}
if(b < c){
    t = b;
    b = c;
    c = t;
}

if(a >= b + c){
    printf("NAO FORMA TRIANGULO");
}
else {
    if(a * a == b * b + c * c)   printf("TRIANGULO RETANGULO\n");
    if(a * a > b * b + c * c)   printf("TRIANGULO OBTUSANGULO\n");
    if(a * a < b * b + c * c)  printf("TRIANGULO ACUTANGULO\n");
    if(a == b && b == c)    printf("TRIANGULO EQUILATERO\n");
    else if(a == b || b == c || a ==c)printf("TRIANGULO ISOSCELES");
}

return 0;

}

样例

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算法1

(暴力枚举) $O(n^2)$

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时间复杂度

参考文献

C++ 代码

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算法2

(暴力枚举) $O(n^2)$

blablabla

时间复杂度

参考文献

C++ 代码

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