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OI-codes/Luogu/P1024/P1024.cpp

29 lines
510 B
C++

// R38992526
#include <bits/stdc++.h>
using namespace std;
double a, b, c, d;
int cnt;
double fc(double x) {
return a * x * x * x + b * x * x + c * x + d;
}
int main() {
scanf("%lf%lf%lf%lf", &a, &b, &c, &d);
for (double i = -100.00; i <= 100.00; i += 0.001) {
double l = i, r = i + 0.001;
if (fc(l) * fc(r) < 0) {
printf("%.2f ", l);
cnt++;
}
if (cnt == 3) {
printf("\n");
break;
}
}
return 0;
}