A+B
.
INPUT.TXT , 109.
OUTPUT.TXT .
#include <iostream>
main()
{
int a,b;
std::cin>>a>>b;
std::cout<<a+b;
}
:
, .
: , -, , . , . - , . : . , . , , . . . , 487, 784. 784 487, 297, 2, . , . , . , , : , , .. 9-2=7. , .
.
INPUT.TXT , .
.
OUTPUT.TXT .
#include <iostream>
using namespace std;
main()
{
int a;
cin>>a;
cout<<a*99+99;
}
:
- , , , .
INPUT.TXT A, B C . A B <= 102, C <= 106.
|
|
|
YES , A*B=C NO .
#include <iostream>
using namespace std;
int main()
{
int a,b,c,d;
cin>>a>>b>>c;
d=a*b;
if (d==c) cout<<"YES";
else cout<<"NO";
return 0;
}
:
3 , , YES, NO
3 , . : .
INPUT.TXT . , 105.
OUTPUT.TXT .
:
. max1 , min1 . max1 min1, 
.
-
. , , .
INPUT.TXT A B, 2*109.
OUTPUT.TXT <, A < B, >, A > B =, A=B.
#include <iostream>
using namespace std;
main ()
{
long long a,b;
cin>>a>>b;
if (a>b) cout<<'>'; else
if (a==b) cout<<'=';else
cout<<'<';
}
:
, , >, <. =.
. , - - ( 10). , , . - , .
, , . , . , , . , .
, .
#include <iostream>
using namespace std;
int main()
{ int a,b;
cin>>a>>b;
cout<<b-1<<' '<<a-1;
return 0;
}
:
: , . , , , . .
|
|
|
k . , , n m , d = 19m + (n + 239)*(n + 366) / 2. d, .
.
#include <iostream>
using namespace std;
main()
{
int a,b,k,i;
cin>>k;
for(i=1;i<=k;i++)
{
cin>>a>>b;
cout<<(19*b+(a+239)*(a+366)/2)<<endl;
}
}
:
- K. 1 k , .
.
#include<iostream>
#include<string>
using namespace std;
int main()
{
int b=0,max=0;
string a;
cin>>a; a+='1';
for(int i=0;i<a.size();i++)
{
if(a[i]=='0')b++;
if(a[i]=='1'){
if(max<b)max=b;
b=0;
}
}
cout<<max;
return 0;
}
:
, . , , b, max b. b max, max = b. b , . max.
n E. , 2.7182818284590452353602875.
#include <iostream>
using namespace std;
main()
{
int n,i;
cin>>n;
string s;
s="7182818284590452353602875";
if(n==0) cout<<3;
else
{
cout<<"2.";
for(i=0;i<n-1;i++) cout<<s[i];
if(s[n]>=5') cout<<s[n-1]+1-'0';
else cout<<s[n-1];
}
}
:
n . S . n=0, 3. 2., n-1, n- , n>=5, s[n-1]+1-0 ( int), s[n-1].
4 . .
#include <iostream>
using namespace std;
int main()
{
int a, b, c, d, e, f, g, h,j,l;
cin >> a >> b >> c >> d >> e >> f >> g >> h;
j = a + c + e + g;
l = b + d + f + h;
if(j ==l)
cout <<"DRAW" << endl;
if(j > l)
cout << 1 << endl;
if(j<l)
cout << 2 << endl;
return 0;
}
:
. j l . DRAW, j>l 1, 2.
. , .. p a, l z, m q.
#include <iostream>
#include <string>
using namespace std;
int main()
{ int i; char c,x;
string a={'q','w','e','r','t','y','u','i','o','p','a','s','d','f','g','h','j','k','l','z','x','c','v','b','n','m','q'};
cin>>c;
for(i=0;i<=26;i++)
if(a[i]==c) {x=a[i+1];
break;}
cout<<x;
|
|
|
}
:
c. , , . , a[i+1] .
- -
. , , , . , , - X . , . , . , , () X .
, , , , . : , , , .
.
#include <iostream>
#include <string>
using namespace std;
main()
{
string a;
int n;
cin>>a;
cin>>n;
if(a=="Home") { if(n%2==0) cout<<"Yes";
else cout<<"Yes";}
if(a=="School") { if(n%2==0) cout<<"No";
else cout<<"Yes";}
}
:
. Home, , 0 , Yes. School, 2, No,
Yes.
: , . , , . : ? !
#include <iostream>
using namespace std;
main()
{
int i,n,max=0,min=30000,a;
cin>>n;
for(i=0;i<n;i++)
{ cin>>a;
if(a>=max) max=a;
if(a<=min) min=a;
}
cout<<min<<' '<<max;
}
:
, 0. n , 0 n . max min . max min.
, . S . , , , , ?
#include <iostream>
using namespace std;
main()
{
float s,a,b;
cin>>s;
a=s/6;
b=4*a;
cout<<a<<' '<<b<<' '<<a;
}
:
s - . - (), 4 - . 6 , = S/6; b=4*a; , , .
n . , . , , .
|
|
|
#include <iostream>
using namespace std;
int main()
{
int n, i, c0=0;
cin>>n;
int mass [n];
for (i=0; i<n; i++)
{
cin>>mass[i];
if (mass[i]==0)
c0++;
}
if (c0<(n-c0))
cout<<c0;
else
cout<<n-c0;
return 0;
}
:
- n. 0 n , 0, 0, 0 1. .
, , . : , , , . , . Fi(x) , x , i+1 i. n- y, :
y = Fn-1(Fn-2(F2(F1(x))))
- , , , .. Fi(x) = x i 1 n-1.
#include <iostream>
using namespace std;
main()
{int a;
cin>>a;
cout<<a;
}
:
, .
N . , . .
#include <iostream>
using namespace std;
int main()
{
int max=0,n,v,i,s,k=0;
cin>>n;
for(i=1;i<=n;i++)
{
cin>>v>>s;
if(s==1) { if(v>max) {max=v; k=i;}}
}
if(max!=0) cout<<k;
else cout<<-1;
}
- n. 1 n , , , -1. , .
N N . .
#include <iostream>
using namespace std;
main()
{
int n,i;
cin>>n;
int a[n];
if (n<=1000) {
for(i=1;i<=n;i++)
cin>>a[i];
for(i=n;i>0;i--)
cout<<a[i]<<" "; }
}
:
n. 1 n , n 0.
. . . , . -. .
, . , 1 . N A B . , . , .
#include <iostream>
using namespace std;
int main()
{
int n,a,b,s;
s=0;
n<=100;
a<=100;
b<=100;
cin>>n>>a>>b;
s=a*b*n*2;
cout<<s;
return 0;
}
:
, 2( ).
. ( ) 437 . N . , . . , .
|
|
|
, , , , .
#include <iostream>
using namespace std;
int main()
{
int n,i,a,x=437,k=0;
cin>>n;
for(i=0;i<n;i++)
{
cin>>a;
if(a<=x) {cout<<"Crash "<<i+1;
break;}
else k++;
}
if(n==k) cout<<"No crash";
}
:
n. , . 437, Crash . No crash.
, . , , .
#include <iostream>
#include <cmath>
using namespace std;
int main()
{
int n,a,k,b,c;
cin>>a>>k>>n;
b=abs(n-k)-1;
c=a-b-2;
if(b<c) cout<<b;
else cout<<c;
}
:
: , , . b - ( ), - . b c.
, , . , , , . , .
, 0 . , .
#include <iostream>
using namespace std;
int main()
{
int n,i,a,k=0,max,x=0;
cin>>n;
max=0;
for(i=1;i<=n;i++)
{cin>>a;
if(a>0) k++;
else k=0;
if(k>max) max=k;
}
cout<<max;
return 0;
}
:
. 1 n . : , k, max. max.
. , .
, max{a2, a4, }+min{a1, a3, }.
#include <iostream>
using namespace std;
int main() {
int mx = -10000, mn = 10000, a, k = 0;
while (cin >> a) {
k += 1;
if (k % 2 == 0) {
if (mx < a) mx = a;
} else { if (mn >a) mn = a; }}
cout << mn + mx;
return 0;
}
:
, , , , mx, mn. mn mx.
a + bx + y x y a, b c. , a, b c , :
, , , ;
, , ( , , 0);
"+" , ;
"+" , ( );
.
:
. 0, 0. != 0 . b!= 0, , b, c.
1, 2,..., n. f(i,j) , i, ai+1,..., aj-1, aj. , a.
#include <iostream>
using namespace std;
int main()
{
long long n,m,i,x,y,j;
int a[n+1];
cin>>n;
for(i=1;i<=n;i++)
cin>>a[i];
cin>>m;
for(i=1;i<=m;i++)
{ cin>>x>>y;
for(j=x;j<=y;j++)
cout<<a[j]<<" ";
cout<<endl;
}
}
:
. 1 n , . , 1 m, x y. x y .
N , . , V[i] . , . , . i- p[i] .
, ( ). , , ( , !), .
.
#include <iostream>
using namespace std;
int main()
{
int n,i,max=-1,k=0;
cin>>n;
int a[n],p[n],o[n];
for(i=1;i<=n;i++)
cin>>a[i];
for(i=1;i<=n;i++)
cin>>p[i];
for(i=1;i<=n;i++)
o[i]=a[i]*p[i];
for(i=1;i<=n;i++)
if(o[i]>max) {max=o[i]; k=i;}
cout<<k;
return 0;
}
1 n [i] - i- , p[i] - i- . o[i] i- . 1 n , . .
. . , , ( ) , .
, , , , ( ) , ( ).
#include <iostream>
using namespace std;
int main()
{
int g,sg,b,sb,a,c;
double pb,pg;
cin>>b>>pb>>sb;
cin>>g>>pg>>sg;
pb=b*(pb/100);
pg=g*(pg/100);
g=g-pg;
b=b-pb;
if(g>b) {a=g-b;pg+=a;}
else {a=b-g; pb+=a;}
c=pg*sg+pb*sb;
cout<<c;
}
:
, , .
, , .
(pg pb).
, , , . .
:
157892 = 3
203516 = 2
409578 = 4
236271 =?
. , "", , . , , .
#include <iostream>
#include <string>
using namespace std;
int main()
{
string a;
cin>>a;
int b=a.size();
int sum=0;
for (int i=0;i<b;i++)
{
if(a[i]=='6' || a[i]=='9' || a[i]=='0') sum=sum+1;
else if (a[i]=='8')sum=sum+2;
}
cout<<sum;
}
:
, = b. 0 b, 6,9,0 sum 1, 8, sum 2. sum.
