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11 tháng 4 2021

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const fi='input.txt';

fo='output.txt';

var f1,f2:text;

a,b,c,max:real;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,a,b,c);

min:=a;

if min>b then min:=b;

if min>c then min:=c;

writeln(f2,min);

close(f1);

close(f2);

end.

19 tháng 12 2021

#include <bits/stdc++.h>

using namespace std;

long long a,b,c,d;

int main()

{

freopen("input.txt","r",stdin);

freopen("output.txt","w",stdout);

cin>>a>>b>>c>>d;

cout<<a+b+c+d;

return 0;

}

const fi='input.txt';

fo='chiahet.txt';

var f1,f2:text;

a:array[1..100]of integer;

i,n,dem:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

n:=0;

while not eoln(f1) do 

begin

inc(n);

read(f1,a[n]);

end;

dem:=0;

for i:=1 to n do

if a[i] mod 3=0 then inc(dem);

writeln(f2,dem);

close(f1);

close(f2);

end.

const fi='input.txt';

fo='output.txt';

var f1,f2:text;

st:string[125];

a:array[1..125]of string;

i,d,dem,kt,j:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,st);

d:=length(st);

dem:=1;

a[1]:=st[1];

for i:=1 to d do

  begin

kt:=0;

for j:=1 to dem do 

  if a[j]=st[i] then kt:=1;

if kt=0 then 

begin

inc(dem);

a[dem]:=st[i];

end;

end;

for i:=1 to dem do 

  begin

dem1:=0;

for j:=1 to d do 

if a[i]=st[j] then inc(dem1);

writeln(f2,a[i],' xuat hien ',dem1,' lan');

end;

close(f1);

close(f2);

end.

uses crt;

const fi='input.txt';

fo='output.txt';

var f1,f2:text;

a,b:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,a,b);

if (a=0) and (b=0) then writeln(f2,'Phuong trinh co vo so nghiem');

if (a<>0) then writeln(f2,-b/a:4:2);

if (a=0) and (b<>0) then writeln(f2,'Phuong trinh vo nghiem');

close(f1);

close(f2);

end.

Bài 1:

const fi='input.txt';

fo='output.txt';

var f1,f2:text;

a,b,s:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,a,b);

s:=a*b;

writeln(f2,s);

close(f1);

close(f2);

end.

Bài 2:

const fi='dulieu.txt';

fo='ketqua.txt';

var f1,f2:text;

a,b:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,a,b);

if a>b then writeln(f2,a)

else if b>a then writeln(f2,b)

else writeln(f2,' khong co so lon nhat trong hai so');

close(f1);

close(f2);

end.

const fi='input.txt';

fo='output.txt';

var f1,f2:text;

a:array[1..100,1..100]of integer;

i,n,m,j,max:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,n,m);

for i:=1 to n do 

  begin

     for j:=1 to m do 

read(f1,a[i,j]);

readln(f1);

end;

for i:=1 to n do

  begin

max:=a[i,1];

for j:=1 to n do 

 if max<a[i,j] then max:=a[i,j];

writeln(f2,max);

end;

close(f1);

close(f2);

end.

const fi='input.txt';

fo='output.txt';

var f1,f2:text;

n:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,n);

if n<0 then writeln(f2,n,' la so am')

else if n=0 then writeln(f2,n,' khong la so am cung khong la so duong')

else writeln(f2,n,' la so duong');

close(f1);

close(f2);

end.