結果
問題 | No.62 リベリオン(Extra) |
ユーザー |
![]() |
提出日時 | 2015-09-26 16:22:00 |
言語 | C++11 (gcc 13.3.0) |
結果 |
AC
|
実行時間 | 40 ms / 5,000 ms |
コード長 | 2,856 bytes |
コンパイル時間 | 682 ms |
コンパイル使用メモリ | 82,456 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-19 10:39:12 |
合計ジャッジ時間 | 1,458 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 3 |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:71:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 71 | scanf("%d", &Q); | ~~~~~^~~~~~~~~~ main.cpp:74:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 74 | scanf("%d%d%d", &W, &H, &D); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:76:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 76 | scanf("%d%d%d%d", &Mx, &My, &Hx, &Hy); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:78:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 78 | scanf("%d%d", &Vx, &Vy); | ~~~~~^~~~~~~~~~~~~~~~~~
ソースコード
#include <string>#include <vector>#include <algorithm>#include <numeric>#include <set>#include <map>#include <queue>#include <iostream>#include <sstream>#include <cstdio>#include <cmath>#include <ctime>#include <cstring>#include <cctype>#include <cassert>#include <limits>#include <functional>#define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i))#define rer(i,l,u) for(int (i)=(int)(l);(i)<=(int)(u);++(i))#define reu(i,l,u) for(int (i)=(int)(l);(i)<(int)(u);++(i))#if defined(_MSC_VER) || __cplusplus > 199711L#define aut(r,v) auto r = (v)#else#define aut(r,v) __typeof(v) r = (v)#endif#define each(it,o) for(aut(it, (o).begin()); it != (o).end(); ++ it)#define all(o) (o).begin(), (o).end()#define pb(x) push_back(x)#define mp(x,y) make_pair((x),(y))#define mset(m,v) memset(m,v,sizeof(m))#define INF 0x3f3f3f3f#define INFL 0x3f3f3f3f3f3f3f3fLLusing namespace std;typedef vector<int> vi; typedef pair<int,int> pii; typedef vector<pair<int,int> > vpii; typedef long long ll;template<typename T, typename U> inline void amin(T &x, U y) { if(y < x) x = y; }template<typename T, typename U> inline void amax(T &x, U y) { if(x < y) x = y; }int exgcd(int a, int b, int &g) {int u = 1, v = 0;while(b) {int t = a / b;a -= t * b; swap(a, b);u -= t * v; swap(u, v);}g = a;return u;}long long crt(long long a1, long long n1, int a2, int n2, long long &resn) {int t, g;t = exgcd(n1 % n2, n2, g);if((a1 - a2) % g != 0) return -1;int n2_g = n2 / g;int d = (a2 - a1) / g % n2_g;int h = (long long)d * t % n2_g;if(h < 0) h += n2_g;long long n = n1 * n2_g;long long a = a1 + n1 * h;resn = n;return a;}inline int red(int x, int y) {int z = x % y;if(z < 0) z += y;return z;}int main() {int Q;scanf("%d", &Q);rep(ii, Q) {int W, H, D;scanf("%d%d%d", &W, &H, &D);int Mx, My, Hx, Hy;scanf("%d%d%d%d", &Mx, &My, &Hx, &Hy);int Vx, Vy;scanf("%d%d", &Vx, &Vy);int speed;{ exgcd(abs(Vx), abs(Vy), speed);Vx /= speed, Vy /= speed;}ll minTime = INFL;rep(mx, 2) rep(my, 2) {int w = W * 2, h = H * 2;int x = mx == 0 ? Mx : 2 * W - Mx;int y = my == 0 ? My : 2 * H - My;x = red(x - Hx, w);y = red(y - Hy, h);int vx = red(Vx, w);int vy = red(Vy, h);int a, b;{ int g;a = exgcd(vx, w, g);if(x % g != 0) continue;vx /= g, x /= g, w /= g;a = red(a, w);assert((ll)a * vx % w == 1 % w);a = (ll)a * x % w;}{ int g;b = exgcd(vy, h, g);if(y % g != 0) continue;vy /= g, y /= g, h /= g;b = red(b, h);assert((ll)b * vy % h == 1 % h);b = (ll)b * y % h;}//t = a (mod w); t = b (mod h)ll dummy;ll t = crt(a, w, b, h, dummy);if(t != -1)amin(minTime, t);}bool ans = minTime <= (ll)D * speed;puts(ans ? "Hit" : "Miss");}return 0;}