結果
問題 | No.321 (P,Q)-サンタと街の子供たち |
ユーザー | koyumeishi |
提出日時 | 2015-12-14 08:38:09 |
言語 | C++11 (gcc 11.4.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,892 bytes |
コンパイル時間 | 840 ms |
コンパイル使用メモリ | 74,564 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-15 12:13:48 |
合計ジャッジ時間 | 2,879 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge6 |
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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 | 1 ms
6,812 KB |
testcase_01 | WA | - |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | WA | - |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 1 ms
6,944 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | WA | - |
testcase_15 | AC | 27 ms
6,940 KB |
testcase_16 | AC | 11 ms
6,940 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | AC | 6 ms
6,940 KB |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | WA | - |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:53:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 53 | scanf("%lld%lld", &x, &y); | ~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:60:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 60 | scanf("%lld%lld", &x, &y); | ~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:66:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 66 | scanf("%lld%lld", &x, &y); | ~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:83:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 83 | scanf("%lld%lld", &x, &y); | ~~~~~^~~~~~~~~~~~~~~~~~~~
ソースコード
#include <iostream> #include <vector> #include <cstdio> #include <sstream> #include <map> #include <string> #include <algorithm> #include <queue> #include <cmath> #include <set> using namespace std; long long gcd(long long a, long long b){ if(b==0) return a; return gcd(b, a%b); } long long lcm(long long a, long long b){ if(a<b) swap(a,b); if(b==1) return a; return a * (b/gcd(a,b)); } long long extgcd(long long a, long long b, long long &x, long long &y){ long long d=a; if(b!=0){ d = extgcd(b, a%b, y, x); y -= (a/b) * x; }else{ x = 1; y = 0; } return d; } #include <cassert> int main(){ long long p,q; cin >> p >> q; int n; cin >> n; if(p<q) swap(p,q); int ans = 0; if(p==0 && q==0){ for(int i=0; i<n; i++){ long long x,y; scanf("%lld%lld", &x, &y); if(x==0 && y==0) ans++; } }else if(q==0){ p = max(p,q); for(int i=0; i<n; i++){ long long x,y; scanf("%lld%lld", &x, &y); if(x%p==0 && y%p==0) ans++; } }else if(p==q){ for(int i=0; i<n; i++){ long long x,y; scanf("%lld%lld", &x, &y); if(x%p!=0 || y%p!=0) continue; long long s = abs(x/p); long long t = abs(y/p); if((s^t)%2 == 0){ ans++; } } }else{ long long c = gcd(p,q); long long u,v; extgcd(p,q,u,v); for(int i=0; i<n; i++){ long long x,y; scanf("%lld%lld", &x, &y); x = abs(x); y = abs(y); if(x%c!=0 || y%c!=0) continue; long long s = abs(x/c); long long t = abs(y/c); bool ok = false; for(int k=0; k<8; k++){ //x = dp + eq = sc = s(up + qv) = su p + sv q //y = fq + gp = tc = t(vq + up) = tv q + tu p long long d = abs(u + k*(q/c))*s; long long e = abs(v - k*(p/c))*s; long long f = abs(v - k*(p/c))*t; long long g = abs(u + k*(q/c))*t; if((d^f)%2==0 && (e^g)%2==0){ ok = true; } } if(ok){ ans++; } } } cout << ans << endl; return 0; }