結果
| 問題 |
No.2069 み世界数式
|
| ユーザー |
tails
|
| 提出日時 | 2022-09-11 00:03:50 |
| 言語 | C90 (gcc 12.3.0) |
| 結果 |
AC
|
| 実行時間 | 17 ms / 2,000 ms |
| コード長 | 2,139 bytes |
| コンパイル時間 | 957 ms |
| コンパイル使用メモリ | 27,904 KB |
| 実行使用メモリ | 11,628 KB |
| 最終ジャッジ日時 | 2024-11-27 07:29:14 |
| 合計ジャッジ時間 | 2,933 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 41 |
コンパイルメッセージ
main.c: In function ‘main’:
main.c:123:9: warning: implicit declaration of function ‘read’; did you mean ‘rd’? [-Wimplicit-function-declaration]
123 | read(0,buf,sizeof buf);
| ^~~~
| rd
main.c:130:17: warning: implicit declaration of function ‘write’ [-Wimplicit-function-declaration]
130 | write(1,"-1\n",3);
| ^~~~~
main.c:135:9: warning: implicit declaration of function ‘_exit’ [-Wimplicit-function-declaration]
135 | _exit(0);
| ^~~~~
main.c:135:9: warning: incompatible implicit declaration of built-in function ‘_exit’ [-Wbuiltin-declaration-mismatch]
ソースコード
#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
#define rd() ({long _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})
typedef unsigned long ulong;
char buf[1024];
struct A {
int op;
char* ep;
struct A* c1;
struct A* c2;
};
struct B {
struct A a[301];
};
struct B pool[8192];
struct B* pp=pool;
struct B* eval(char**epp,long m){
char*e=*epp;
struct B*mul=0;
struct B*add=0;
char*mulp=0;
char*addp=0;
while(1){
struct B*cur;
if(*e=='('){
++e;
cur=eval(&e,m);
}else{
long v=0;
for(long c;c=*e-'0',c>=0&&c<=9;e++){
v=v*10+c;
}
cur=pp++;
cur->a[v].op='0';
}
{
char*curp=e++;
if(mul){
struct B*r=pp++;
for(int x=0;x<=m;++x){
if(mul->a[x].op){
for(int y=0;y<=m;++y){
if(cur->a[y].op){
if(y){
struct A*a=&r->a[x/y];
a->op='/';
a->c1=&mul->a[x];
a->c2=&cur->a[y];
a->ep=mulp;
}
if(x*y<=m){
struct A*a=&r->a[x*y];
a->op='*';
a->c1=&mul->a[x];
a->c2=&cur->a[y];
a->ep=mulp;
}
}
}
}
}
mul=r;
}else{
mul=cur;
}
mulp=curp;
}
if(*mulp!='&'){
if(add){
struct B*r=pp++;
for(int x=0;x<=m;++x){
if(add->a[x].op){
for(int y=0;y<=m;++y){
if(mul->a[y].op){
if(x-y>=0){
struct A*a=&r->a[x-y];
a->op='-';
a->c1=&add->a[x];
a->c2=&mul->a[y];
a->ep=addp;
}
if(x+y<=m){
struct A*a=&r->a[x+y];
a->op='+';
a->c1=&add->a[x];
a->c2=&mul->a[y];
a->ep=addp;
}
}
}
}
}
add=r;
}else{
add=mul;
}
mul=0;
addp=mulp;
if(*addp=='\n'||*addp==')'){
break;
}
}
}
*epp=e;
return add;
}
void apply(struct A*a){
if(a){
if(a->ep) *a->ep=a->op;
apply(a->c1);
apply(a->c2);
}
}
int main(){
read(0,buf,sizeof buf);
char*rp=buf;
long m=rd();
long ans=rd();
char*expr=rp;
struct B*b=eval(&expr,m);
if(b->a[ans].op==0){
write(1,"-1\n",3);
}else{
apply(&b->a[ans]);
write(1,rp,expr-rp);
}
_exit(0);
}
tails