QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#667827#4049. 预处理器zrzzrz100 ✓1ms3888kbC++141.3kb2024-10-23 08:29:492024-10-23 08:29:57

Judging History

This is the latest submission verdict.

  • [2024-10-23 08:29:57]
  • Judged
  • Verdict: 100
  • Time: 1ms
  • Memory: 3888kb
  • [2024-10-23 08:29:49]
  • Submitted

answer

#include <bits/stdc++.h>
using namespace std;
int n;
string s,t[105];
unordered_map<string,string> a;
unordered_map<string,bool> vis,F;
void work(string s){
    t[1]=t[2]="";
    int len=s.size(),cnt=0;
    for (int i=0;i<len;i++){
        if (cnt==1&&s[i]!=' ') t[1]+=s[i];
        if (cnt>1) t[2]+=s[i];
        if (s[i]==' ') cnt++;
    }
}
string calc(string s){
    string res="";
    if (vis[s]&&!F[s]){
        F[s]=1;
        string t=a[s],T="";
        int len=t.size();
        for (int i=0;i<=len;i++){
            if (i==len) res+=calc(T),T="";
            else if (isdigit(t[i])||isalpha(t[i])||t[i]=='_') T+=t[i];
            else res+=calc(T)+t[i],T="";
        }
        F[s]=0;
    }
    else res=s;
    return res;
}
int main(){
    scanf("%d\n",&n);
    for (int i=1;i<=n;i++){
        getline(cin,s);
        if (s[0]=='#'){
            work(s);
            if (s[1]=='d') a[t[1]]=t[2],vis[t[1]]=1;
            else vis[t[1]]=0;
        }
        else{
            int len=s.size();
            string T="";
            for (int i=0;i<len;i++){
                if (isdigit(s[i])||isalpha(s[i])||s[i]=='_') T+=s[i];
                else cout<<calc(T)<<s[i],T="";
            }
            cout<<calc(T);
        }
        puts("");
    }
    return 0;
}

Details

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Pretests


Final Tests

Test #1:

score: 10
Accepted
time: 0ms
memory: 3612kb

input:

1
printf("Hello, world!\n");

output:

printf("Hello, world!\n");

result:

ok single line: 'printf("Hello, world!\n");'

Test #2:

score: 10
Accepted
time: 0ms
memory: 3720kb

input:

5
#define PI 3.14159
#define E 2.71828
std::cout << PI * r * r << std::endl;
std::cout << log10(x) / log10(E) << std::endl;
std::cout << "E^(PI * i) + 1 = 0" << std::endl;

output:


std::cout << 3.14159 * r * r << std::endl;
std::cout << log10(x) / log10(2.71828) << std::endl;
std::cout << "2.71828^(3.14159 * i) + 1 = 0" << std::endl;

result:

ok 5 lines

Test #3:

score: 10
Accepted
time: 0ms
memory: 3648kb

input:

5
#define A abc
#define B hij
A B AB BA B A
#undef A
A B AB BA B A

output:


abc hij AB BA hij abc

A hij AB BA hij A

result:

ok 5 lines

Test #4:

score: 10
Accepted
time: 0ms
memory: 3888kb

input:

9
#define A B B
A B C
C B A
#define B C C
A B C
C B A
#define C [a, b, c]
A B C
C B A

output:

B B B C
C B B B

C C C C C C C
C C C C C C C

[a, b, c] [a, b, c] [a, b, c] [a, b, c] [a, b, c] [a, b, c] [a, b, c]
[a, b, c] [a, b, c] [a, b, c] [a, b, c] [a, b, c] [a, b, c] [a, b, c]

result:

ok 9 lines

Test #5:

score: 10
Accepted
time: 0ms
memory: 3672kb

input:

6
#define A A+B+C
#define B b+C
#define C B+c
A*B*C
#undef B
A*B*C

output:



A+b+B+c+b+C+c*b+B+c*b+C+c

A+B+B+c*B*B+c

result:

ok 6 lines

Test #6:

score: 10
Accepted
time: 1ms
memory: 3832kb

input:

100
8czu(!@iNcuVcs9Zu3/a.$Fo{Fij<4.'Y}JZ:6>2%evBhvjA7IItz`85q'pJ 80"<+vdDzt`?D9L\Ryx0y2[Lu Viek6-NfJ X}=
b&"Yz8kOQ{?yVq\>C85o*Y,XaEb^?;Cf?{iTg**mSZy?NtY'sD 9PWlvF3vug7v\=gw_um^1S,.rjONR'!~jLF=xrQNAx]P=Ze ;
}^<pTuLfJ~y,QN{ 0&oB}2Y)f2V=o|hr3!wl@x36N2X^t&wL!CD)gR  guy^??Io;%5~9a/C_`mkk0z4&t7yT\<iNAa+7y...

output:

8czu(!@iNcuVcs9Zu3/a.$Fo{Fij<4.'Y}JZ:6>2%evBhvjA7IItz`85q'pJ 80"<+vdDzt`?D9L\Ryx0y2[Lu Viek6-NfJ X}=
b&"Yz8kOQ{?yVq\>C85o*Y,XaEb^?;Cf?{iTg**mSZy?NtY'sD 9PWlvF3vug7v\=gw_um^1S,.rjONR'!~jLF=xrQNAx]P=Ze ;
}^<pTuLfJ~y,QN{ 0&oB}2Y)f2V=o|hr3!wl@x36N2X^t&wL!CD)gR  guy^??Io;%5~9a/C_`mkk0z4&t7yT\<iNAa+7y(ZOa...

result:

ok 100 lines

Test #7:

score: 10
Accepted
time: 0ms
memory: 3624kb

input:

100
#define a ?!*(\@{$.!(;!'?<(=^
V X o i C I H p M A e L O F P x z h b T K s l t u Q E G m d R D c q J w N y f g U n j r v B S k W a
#define b >'[&-~?<@`](!+*(}{+
h g S l A T r N O M C k a w U G H s m E t n v f u e d K b y c W Q o x V B L R I J p i q j D X z F P
#define c }{);'|{*?>&\<];!+!|
X h c ...

output:

V X o i C I H p M A e L O F P x z h b T K s l t u Q E G m d R D c q J w N y f g U n j r v B S k W ?!*(\@{$.!(;!'?<(=^

h g S l A T r N O M C k ?!*(\@{$.!(;!'?<(=^ w U G H s m E t n v f u e d K >'[&-~?<@`](!+*(}{+ y c W Q o x V B L R I J p i q j D X z F P

X h }{);'|{*?>&\<];!+!| z T C P Q M G ?!*(\...

result:

ok 100 lines

Test #8:

score: 10
Accepted
time: 1ms
memory: 3680kb

input:

100
#define b \)&%\<=!$(><[[./*{\
o p R a x m V i F H O X J e K d z Q C G b E M s l t u A W T I N h D c q L w P y f g U n j r v B S k
#define p &-~?<@`](!+*(}{+?-|
g W T N h X y w A C r s b l k a S Q K E m c t n v M R u e H O d f F G U o x z P B L V I J p i q j D
#define W '|{*?>&\<];!+!|{^+"
S V j ...

output:

o p R a x m V i F H O X J e K d z Q C G \)&%\<=!$(><[[./*{\ E M s l t u A W T I N h D c q L w P y f g U n j r v B S k

g W T N h X y w A C r s \)&%\<=!$(><[[./*{\ l k a S Q K E m c t n v M R u e H O d f F G U o x z P B L V I J &-~?<@`](!+*(}{+?-| i q j D

S V j P &-~?<@`](!+*(}{+?-| O g X R y T D C...

result:

ok 100 lines

Test #9:

score: 10
Accepted
time: 1ms
memory: 3692kb

input:

100
#define b X*
E x X l q u r h J t j H P S D O d v U e C k Q w M y a z V s F K A m N G W n T b c B L f I R g i o p
#define N T>
p V E q b j A O N l d a z R G J C i X P I h F W B t U u v L H M n w K k x D r y g S f s o Q c e T m
#define P X&
K U y Q g A V l b D E e w s k H a r P S M C N m c t n v O...

output:

E x X l q u r h J t j H P S D O d v U e C k Q w M y a z V s F K A m N G W n T X* c B L f I R g i o p

p V E q X* j A O T> l d a z R G J C i X P I h F W B t U u v L H M n w K k x D r y g S f s o Q c e T m

K U y Q g A V l X* D E e w s k H a r X& S M C T> m c t n v O T u j h d f F G W o x z R B L X I...

result:

ok 100 lines

Test #10:

score: 10
Accepted
time: 1ms
memory: 3628kb

input:

100
#define b V*
E x X l q u r h J t j H P S D O d v U e C k Q w M y a z V s F K A m N G W n T b c B L f I R g i o p
#define N x>
p V E q b j A O N l d a z R G J C i X P I h F W B t U u v L H M n w K k x D r y g S f s o Q c e T m
#define P D&
K U y Q g A V l b D E e w s k H a r P S M C N m c t n v O...

output:

E x X l q u r h J t j H P S D O d v U e C k Q w M y a z V s F K A m N G W n T V* c B L f I R g i o p

p V E q V* j A O x> l d a z R G J C i X P I h F W B t U u v L H M n w K k x D r y g S f s o Q c e T m

K U y Q g A V l V* D E e w s k H a r D& S M C x> m c t n v O T u j h d f F G W o x z R B L X I...

result:

ok 100 lines

Extra Test:

score: 0
Extra Test Passed