【链接】点击打开链接
【题意】
在这里写题意
【题解】
时针每过1分钟转0.5°.
(360/(12*60))
分钟每过1分钟转6°
(360/60);
根据这个就能算出时针和分针的角度之差了.
【错的次数】
0
【反思】
在这了写反思
【代码】
#include <cstdio> #include <iostream> #include <algorithm> #include <cstring> #include <vector> #include <map> #include <queue> #include <iomanip> #include <set> #include <cstdlib> #include <cmath> using namespace std; #define lson l,m,rt<<1 #define rson m+1,r,rt<<1|1 #define LL long long #define rep1(i,a,b) for (int i = a;i <= b;i++) #define rep2(i,a,b) for (int i = a;i >= b;i--) #define mp make_pair #define pb emplace_back #define fi first #define se second #define ld long double #define ms(x,y) memset(x,y,sizeof x) #define ri(x) scanf("%d",&x) #define rl(x) scanf("%lld",&x) #define rs(x) scanf("%s",x) #define rf(x) scnaf("%lf",&x) #define oi(x) printf("%d",x) #define ol(x) printf("%lld",x) #define oc putchar(' ') #define os(x) printf(x) #define all(x) x.begin(),x.end() #define Open() freopen("F:\rush.txt","r",stdin) #define Close() ios::sync_with_stdio(0) #define sz(x) ((int) x.size()) #define ld long double typedef pair<int,int> pii; typedef pair<LL,LL> pll; //mt19937 myrand(time(0)); //int get_rand(int n){return myrand()%n + 1;} const int dx[9] = {0,1,-1,0,0,-1,-1,1,1}; const int dy[9] = {0,0,0,-1,1,-1,1,-1,1}; const double pi = acos(-1.0); const int N = 110; int h,m,s,t; int main(){ //Open(); //Close(); int T; ri(T); while (T--){ ri(h),ri(m),ri(s); ri(t); t = t % 86400; s = s + t; if (s >= 60) { m += s / 60; s %= 60; if (m >= 60) { h += m / 60; m %= 60; if (h >= 24) { h %= 24; } } } if (h >= 12) h -= 12; double s1 = (s/60.0)*0.5 + 1.0*m*0.5 + h*30; double s2 = (s/60.0)*6.0 + m*6.0; double temp = abs(s1-s2); printf("%.4f ",min(360-temp,temp)); } return 0; }