http://acm.hdu.edu.cn/showproblem.php?pid=5904
1 #include <iostream> 2 #include <stdio.h> 3 using namespace std; 4 const int maxn = 1e6+10; 5 const int maxn2 = 1e5+10; 6 int sum1[maxn], sum2[maxn], c[maxn2], d[maxn2]; 7 int main(){ 8 int t, n, m, x; 9 scanf("%d", &t); 10 while(t--){ 11 int ma = 0; 12 scanf("%d %d", &n, &m); 13 for(int i = 0; i < n; i++){ 14 scanf("%d", &c[i]); 15 sum1[c[i]] = sum1[c[i]-1] + 1; 16 } 17 for(int i = 0; i < m; i++){ 18 scanf("%d", &d[i]); 19 sum2[d[i]] = sum2[d[i]-1] + 1; 20 } 21 for(int i = 0; i < n; i++) ma = max(ma, min(sum1[c[i]], sum2[c[i]])); 22 printf("%d ", ma); 23 // memset(sum1, 0, sizeof(sum1)); //too young 24 // memset(sum2, 0, sizeof(sum2)); //too young 25 for(int i = 0; i < n; i++) sum1[c[i]] = 0; 26 for(int j = 0; j < m; j++) sum2[d[j]] = 0; 27 } 28 return 0; 29 }
只有不断学习才能进步！