UVA Problem 10341 – Solve It Solution

Problem Solving, UVa

#include <cstdio>

#include <cmath>

using namespace std;

int main()

{

int T,p,q,r,s,t,u;

double lo,hi,mi,f;

while(scanf("%d %d %d %d %d %d",&p,&q,&r,&s,&t,&u)==6)

{

if(p*exp(-1)+q*sin(1)+r*cos(1)+s*tan(1)+t+u>1e-9 || p+r+u<0)

{

printf("No solution\n");

continue;

}

lo=0.0; hi=1.0;

for(int i=0;i<30;i++){

mi=(lo+hi)/2;

f=p*exp(-mi)+q*sin(mi)+r*cos(mi)+s*tan(mi)+t*mi*mi+u;

if(f>0) lo=mi;

else hi=mi;

}

printf("%.4f\n",lo);

}

return 0;



}

 

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