Объяснение:
var a,b,s,o:integer;
begin
o := 0;
writeln('введите количество секунд');
readln(a);
writeln('1.муж 2.жен');
readln(b);
s:=0;
if b = 1 then
if (a <= 400) and (s=0) then
o := 5;
s := s+1;
end;
if (a <= 500) and (s=0) then
o := 4;
if (a <= 600) and (s=0) then
o := 3;
if (a <= 700) and (s=0) then
o := 2;
end
else
if (a <= 800) and (s=0) then
writeln('оценка: ',o)
end.
#include <iostream>
typedef long long ll;
using namespace std;
bool ll_is_valid(ll t, ll N, ll x, ll y)
{
return t / x + (t - x) / y >= N;
}
ll f(ll N, ll x, ll y)
ll R = 1;
while (!ll_is_valid(R,N,x,y)) R *= 2;
ll L = R / 2;
while(R - L > 1)
ll M = (L + R) / 2;
if (!ll_is_valid(M,N,x,y)) {L = M;}
else {R = M;}
return R;
int main()
ll N,x,y;
cin >> N >> x >> y;
if(x > y) swap( x, y );
cout << f(N, x, y) << std::endl;
Объяснение:
var a,b,s,o:integer;
begin
o := 0;
writeln('введите количество секунд');
readln(a);
writeln('1.муж 2.жен');
readln(b);
s:=0;
if b = 1 then
begin
if (a <= 400) and (s=0) then
begin
o := 5;
s := s+1;
end;
if (a <= 500) and (s=0) then
begin
o := 4;
s := s+1;
end;
if (a <= 600) and (s=0) then
begin
o := 3;
s := s+1;
end;
if (a <= 700) and (s=0) then
begin
o := 2;
s := s+1;
end;
end
else
begin
if (a <= 500) and (s=0) then
begin
o := 5;
s := s+1;
end;
if (a <= 600) and (s=0) then
begin
o := 4;
s := s+1;
end;
if (a <= 700) and (s=0) then
begin
o := 3;
s := s+1;
end;
if (a <= 800) and (s=0) then
begin
o := 2;
s := s+1;
end;
end;
writeln('оценка: ',o)
end.
#include <iostream>
typedef long long ll;
using namespace std;
bool ll_is_valid(ll t, ll N, ll x, ll y)
{
return t / x + (t - x) / y >= N;
}
ll f(ll N, ll x, ll y)
{
ll R = 1;
while (!ll_is_valid(R,N,x,y)) R *= 2;
ll L = R / 2;
while(R - L > 1)
{
ll M = (L + R) / 2;
if (!ll_is_valid(M,N,x,y)) {L = M;}
else {R = M;}
}
return R;
}
int main()
{
ll N,x,y;
cin >> N >> x >> y;
if(x > y) swap( x, y );
cout << f(N, x, y) << std::endl;
}