結果
問題 | No.2383 Naphthol |
ユーザー | tails |
提出日時 | 2023-07-19 17:35:25 |
言語 | C90 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 1 ms / 2,000 ms |
コード長 | 2,998 bytes |
コンパイル時間 | 839 ms |
コンパイル使用メモリ | 24,320 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-19 16:19:01 |
合計ジャッジ時間 | 1,064 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 0 ms
6,812 KB |
testcase_01 | AC | 0 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,944 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 0 ms
6,940 KB |
testcase_05 | AC | 0 ms
6,944 KB |
testcase_06 | AC | 0 ms
6,940 KB |
testcase_07 | AC | 0 ms
6,944 KB |
testcase_08 | AC | 1 ms
6,940 KB |
testcase_09 | AC | 0 ms
6,940 KB |
testcase_10 | AC | 0 ms
6,944 KB |
testcase_11 | AC | 1 ms
6,944 KB |
testcase_12 | AC | 1 ms
6,940 KB |
testcase_13 | AC | 0 ms
6,940 KB |
testcase_14 | AC | 1 ms
6,940 KB |
testcase_15 | AC | 0 ms
6,940 KB |
testcase_16 | AC | 0 ms
6,940 KB |
testcase_17 | AC | 1 ms
6,940 KB |
testcase_18 | AC | 1 ms
6,940 KB |
testcase_19 | AC | 1 ms
6,940 KB |
testcase_20 | AC | 1 ms
6,944 KB |
コンパイルメッセージ
main.c: In function ‘main’: main.c:72:17: warning: implicit declaration of function ‘write’ [-Wimplicit-function-declaration] 72 | write(1,k==2||k==3||k==4?"3":"1",1); | ^~~~~ main.c:82:9: warning: implicit declaration of function ‘_exit’ [-Wimplicit-function-declaration] 82 | _exit(0); | ^~~~~ main.c:82:9: 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_init() char*rp=({char*mmap();mmap(0l,1l<<25,1,2,0,0ll);}) #define rd() ({long _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;}) #define wt(v) ({ulong _z=v;do*--wp=_z%10+48;while(_z/=10);}) #define wt1(v) ({char wbuf[64],*wp=wbuf+sizeof wbuf;wt(v);write(1,wp,wbuf+sizeof wbuf-wp);}) #define MD 998244353 typedef unsigned long ulong; ulong fac(ulong n){ static unsigned const fac8[]={ 1,941747501,776540593,210672823,690071003, 46617525,213768760,693968959, 80489582,706932617,794151417,465499254,696674125,679081391,691448896,713797428, 275558954,609927147,557311239,831274938,893291440,167105676,415665360,192812445, 680052439,557094195,688128904,792752264,192208002,847923750, 28263099,728717984, 491684840,336918851,633366503,758306641,296930470,699020919,910172402,905192639, 792232676,535935445,410591335,810793504,856039476,765650325,702144816,374640872, 197994359,320889851,883115987,151590670,245098264,286989423,729221238,511226407, 874957813,979489918,228248737,453190470,223927796,852989243, 50287712,509033048, 243625084, 40159580,655302994,829942035,299277458, 86622874,109276119, 75894103, 424113548,567421291,676588086,620367716,815463188, 44143218,810930880, 499782, 416513770, 59750787,280879191,113328955,910641127,542089438,873391271, 49111081, 422655771,749741439,838916518,825928836,422316600,445140078,135792920,796315921, 334523653,505750213,745454889,284439669,264422227,488144299,264594887,332021570, 256723915,768304408,506153085,533770970,929732704,471614028,243021423, 36822049, 195608626,792193516,215245367,588445499, 10232161,974583034,843169718, 33517339, 744867256,422042779,971678608,929209828,740055526,129980885,404829672,225807005, 528205456,240143253,706174821,263068586,794757329,221639463,240967815, 20047837, 331134934,127470054,793695956,210565051,959206504,138448490,667121261,136048183, 226620404,692730832,887464126,715216840,786895056,680299255,592465564,104271019, 241786040,302567286,781777622,695362768,267443112, 60985765,733684226,937002588, 298149860,170166008,805749567, 79282620,437665466,386653062,754588014,265310082, 81266867,109466639,595236940,591251736,755288980,912652888,460141120,759221877, 825572784, 18194464,368427783,571463817,553552793,218414240, 8897606,791219964, 987232136,626678298,363848504, 23298153,623570515,506916981,151639897,269752482, 341219264,108067268,360379612,245950594, }; ulong z=fac8[n>>10]; for(;n&1023;--n){ z=z*n%MD; } return z; } int inverse(int a){ int b=MD; int u=1; int v=0; int s,t; while(b){ t=a/b; s=b; b=a-t*b; a=s; s=v; v=u-t*v; u=s; } if(u<0){ u+=MD; } return u; } ulong c(ulong n,ulong r){ return fac(n)*inverse(fac(n-r)*fac(r)%MD); } int main(){ rd_init(); ulong n=rd(); ulong k=rd(); if(n==1){ write(1,k==2||k==3||k==4?"3":"1",1); }else{ ulong z=c(n*2+4,k); if(~k&1){ z+=c(n+2,k/2)*3; }else if(n&1){ z+=c(n+1,k/2)*2; } wt1(z%MD*748683265%MD); } _exit(0); }