Ride to School(POJ 1922)
2014-03-13 14:13
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#include <stdio.h> #include <stdlib.h> #include <math.h> int main() { int n, v, t; double time, min; while(~scanf("%d", &n)&&n){ min = 4.5 * 3600; while(n--){ scanf("%d%d", &v, &t); if (t < 0) continue; time = 4.5 / v * 3600 + t; if (time <= min) min = time; } t = ceil(min);//ceil(a)是求不小于a的最小整数。跟它对应的还 //有一个floor函数,floor(a)表示求不大于a的最大整数。 printf("%d\n", t); } return 0; }
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