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国王的魔镜 时间限制:3000 ms | 内存限制:65535 KB 难度:1 描述国王有一个魔镜,可以把任何接触镜面的东西变成原来的两倍——只是,因为是镜子嘛,增加的那部分是反的。 比如一条项链,我们用AB来表示,不同的字母表示不同颜色的珍珠。如果把B端接触镜面的话,魔镜会把这条项链变为ABBA。如果再用一端接触的话,则会变成ABBAABBA(假定国王只用项链的某一端接触魔镜)。 ... 阅读全文
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HDU 题目分类 1001 这个就不用说了吧 1002 简单的大数 1003 DP经典问题,最大连续子段和 1004 简单题 1005 找规律(循环点) 1006 感觉有点BT的题,我到现在还没过 1007 经典问题,最近点对问题,用分治 1008 简单题 1009 ... 阅读全文
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View Code #include #include #define maxn 40000 int c[maxn]; int main() { int i,j,s,k,n; while(scanf("%d",&n)!=EOF) { memset(c,0,sizeof(c)); c[0]=1; k=0; for(... 阅读全文
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A+B for Input-Output Practice (I) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 45988 Accepted Submission(s): 25909 Problem Description You... 阅读全文
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A+B for Input-Output Practice (II) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 34997 Accepted Submission(s): 23258 Problem Description Yo... 阅读全文
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A+B for Input-Output Practice (III) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 42013 Accepted Submission(s): 21378 Problem Description Y... 阅读全文
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A+B for Input-Output Practice (V) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 27247 Accepted Submission(s): 18476 Problem Description You... 阅读全文
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A+B for Input-Output Practice (V) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 27247 Accepted Submission(s): 18476 Problem Description You... 阅读全文
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A+B for Input-Output Practice (VI) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 25607 Accepted Submission(s): 17325 Problem Description Yo... 阅读全文
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A+B for Input-Output Practice (VII) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 25686 Accepted Submission(s): 16904 Problem Description Y... 阅读全文