Created
May 29, 2012 15:08
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| #include <stdio.h> | |
| int main(void) | |
| { | |
| int n = 0, m = 0; | |
| int u = 0, d = 0, t = 0; | |
| int l = 0, low = -1; | |
| scanf("%d %d", &n, &m); | |
| while(m--) | |
| { | |
| scanf("%d %d", &u, &d); | |
| t = (int)(( (n*d) / (u+d) ) + 1); | |
| l = (u+d)*t-n*d; | |
| if( ((l < low) && low >= 0) || (low < 0) ) | |
| low = l; | |
| } | |
| printf("%d\n", low); | |
| } |
t=((n_d)/(u d)) 1
->t=(n_d u d)/(u d)
l=(u d)t-n_d=n_d u d-n*d=u d.
当然,没考虑分数.
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t=((n_d)/(u d)) 1
->t=(n_d u d)/(u d)
l=(u d)t-n_d=n_d u d-n*d=u d.
当然,没考虑分数.