結果

問題 No.2715 Unique Chimatagram
ユーザー tails
提出日時 2024-04-05 23:34:15
言語 C90
(gcc 12.3.0)
結果
AC  
実行時間 56 ms / 2,000 ms
コード長 1,227 bytes
コンパイル時間 1,077 ms
コンパイル使用メモリ 25,472 KB
実行使用メモリ 6,824 KB
最終ジャッジ日時 2024-10-01 03:09:52
合計ジャッジ時間 2,538 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 40
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.c: In function ‘f2’:
main.c:60:25: warning: implicit declaration of function ‘memcpy’ [-Wimplicit-function-declaration]
   60 |                         memcpy(wbuf,ss[hn[h]-1],11);
      |                         ^~~~~~
main.c:1:1: note: include ‘<string.h>’ or provide a declaration of ‘memcpy’
  +++ |+#include <string.h>
    1 | #pragma GCC optimize("Ofast")
main.c:60:25: warning: incompatible implicit declaration of built-in function ‘memcpy’ [-Wbuiltin-declaration-mismatch]
   60 |                         memcpy(wbuf,ss[hn[h]-1],11);
      |                         ^~~~~~
main.c:60:25: note: include ‘<string.h>’ or provide a declaration of ‘memcpy’
main.c:69:41: warning: implicit declaration of function ‘write’ [-Wimplicit-function-declaration]
   69 |                                         write(1,wbuf,j);
      |                                         ^~~~~
main.c:70:41: warning: implicit declaration of function ‘_exit’ [-Wimplicit-function-declaration]
   70 |                                         _exit(0);
      |                                         ^~~~~
main.c:70:41: warning: incompatible implicit declaration of built-in function ‘_exit’ [-Wbuiltin-declaration-mismatch]
main.c:73:25: warning: incompatible implicit declaration of built-in function ‘_exit’ [-Wbuiltin-declaration-mismatch]
   73 |                         _exit(1);
      |                         ^~~~~
main.c:77:9: warning: incompatible implicit declaration of built-in function ‘_exit’ [-Wbuiltin-declaration-mismatch]
   77 |         _exit(0);
      |         ^~~~~

ソースコード

diff #
プレゼンテーションモードにする

#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
#define rd_init() char*rp=({char*mmap();mmap(0l,1l<<25,1,2,0,0ll);})
#define rd() ({int _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})
#define rep(v,e) for(typeof(e) v=0;v<e;++v)
#define HASH_BITS 16
#define HASH_MASK ((1<<HASH_BITS)-1)
unsigned hash[1<<HASH_BITS];
int hash_add(unsigned x){
    int h=x&HASH_MASK;
    while(1){
        if(hash[h]==0){
            hash[h]=x;
            return h;
        }
        if(hash[h]==x){
            return h;
        }
        h=h+1&HASH_MASK;
    }
}
int hn[1<<HASH_BITS];
char ss[1000][11];
unsigned ch[26];
void f0(){
    unsigned v=1;
    rep(i,26){
        ch[i]=v;
        v*=257;
    }
}
void f1(){
    rd_init();
    int n=rd();
    rep(i,n){
        char*s=ss[i];
        int j=0;
        unsigned v=0;
        for(int c;c=*rp++,c>='a';){
            s[j++]=c;
            v+=ch[c-'a'];
        }
        rep(c,26){
            int h=hash_add(v+ch[c]);
            hn[h]=hn[h]?-1:i+1;
        }
    }
}
void f2(){
    rep(h,1<<HASH_BITS){
        if(hn[h]>0){
            char wbuf[16];
            memcpy(wbuf,ss[hn[h]-1],11);
            unsigned v=hash[h];
            int j=0;
            for(int c;c=wbuf[j++],c>='a';){
                v-=ch[c-'a'];
            }
            rep(c,26){
                if(ch[c]==v){
                    wbuf[j-1]=c+'a';
                    write(1,wbuf,j);
                    _exit(0);
                }
            }
            _exit(1);
        }
    }
    write(1,"-1",2);
    _exit(0);
}
int main(){
    f0();
    f1();
    f2();
}
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