class Program { public static void main(String[] args) { Scanner Scan = new Scanner(System.in); System.out.print("A = "); int A = Scan.nextInt(); System.out.print("B = "); int B = Scan.nextInt(); System.out.print("N = "); int N = Scan.nextInt(); double R = 0; switch(N) { case 1: R = A+B; break; case 2: R = A-B; break; case 3: R = A*B; break; case 4: R = A/B; break; } System.out.println(R); } }
YekaterinaAbinskov
29.11.2021
Function ArcCos(x:real):real; var t:real; begin t:=ArcTan(Sqrt(1-x*x)/x); if x<0 then ArcCos:=t+Pi else ArcCos:=t end;
var a,b,c,p,p2,s,alpha,beta,gamma,h:real; begin Read(a,b,p); c:=p-a-b; p2:=p/2; s:=sqrt(p2*(p2-a)*(p2-b)*(p2-c)); alpha:=ArcCos((b*b+c*c-a*a)/(2*b*c)); beta:=ArcCos((a*a+c*c-b*b)/(2*a*c)); h:=a*Sin(beta); alpha:=alpha*180/Pi; beta:=beta*180/Pi; gamma:=180-alpha-beta; Writeln('c=',c); Writeln('alpha=',alpha:0:2,', beta=',beta:0:2,', gamma=',gamma:0:2); Writeln('S=',s,', h=',h) end.
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TASKKILL
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