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贴个一维的滚动数组(C++提交 156K)真是不明白为啥用C++提交内存占用少几百k,oj是怎么算出内存消耗的啊 难道不仅和实际使用的有关还和编译系统有很大关系?? #include <stdio.h> #include <string.h> int main() { char a[5002]; int f[5002]; int i,j,n,t,tp; scanf("%d%s",&n,a+1); memset(f,0,sizeof(f)); for(i=1;i<=n;i++){ tp=0; //f[i-1,j-1]复位,一开始忘记了,老是wa,郁闷 for(j=n;j>=1;j--){ if(a[i]==a[j]){ t=f[j]; f[j]=tp+1; //f[i,j]=f[i-1,j-1]+1 tp=t; } else{ tp=f[j]; if(f[j]<f[j+1]) f[j]=f[j+1]; //f[i-1,j]<f[i,j-1] } } } printf("%d\n",n-f[1]); return 0; } Followed by:
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