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- using namespace std;
- float a, b, c;
- float obwod_trojkata(float a, float b, float c)
- {
- if(a<1 || b<1 || c<1 || a>=b+c || b>=a+c || c>=a+b)
- {
- return -1;
- }
- else
- {
- float obwod = a+b+c;
- return obwod;
- }
- }
- int main()
- {
- cout << "Podaj 3 boki trojkata" << endl;
- cin >> a >> b >> c;
- cout<<"Ich obwod to: "<<obwod_trojkata(a,b,c);
- if(obwod_trojkata(a,b,c)==-1)
- {
- cout<<endl<<"nie mozna utworzyc trojkata";
- }
- return 0;
- }
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