07 day 2

#include <stdio.h>
#define max(a,b) ((a)>(b)?(a):(b))
int n,m,i,j,k,l,a,b;
int d[11][11];
//  s: time  w: value
int s[10000],w[10000],pn,f[1000000];
int main(){
	freopen("medic.in","r",stdin);
	freopen("medic.out","w",stdout);
	scanf("%d%d",&n,&m);
	for(i=0;i<n;++i){
		scanf("%d%d",&a,&b);
		++d[a][b];
	}
	for(i=1;i<11;++i){
		for(j=1;j<=11;++j){
			k=1;
			while(d[i][j]){
				if(d[i][j]>k){
					s[pn]=i*k,w[pn]=j*k,++pn;
					d[i][j]-=k;
					k<<=1;
				}else{
					s[pn]=i*d[i][j],w[pn]=j*d[i][j],++pn;
					d[i][j]=0;
				}
			}
		}
	}
	for(i=0;i<pn;++i){
		for(j=m;j>=s[i];--j){
			f[j]=max(f[j],f[j-s[i]]+w[i]);
		}
	}
	printf("%d\n", f[m]);
    return 0;
}

#include <cstdio>
#define min(a,b) ((a)<(b)?(a):(b))
int m,n,i,j,k,f2[2000][2000],f5[2000][2000],fmin[2000][2000],d2[2000][2000],d5[2000][2000],t;
inline int countbit(int n){
	t=0;
	while(!(k&1)) k>>=1,++t;
	return t;
}
inline int countf(int n){
	t=0;
	while(!(k%5)) k/=5,++t;
	return t;
}
int main(){
	freopen("matrix.in","r",stdin);
	freopen("matrix.out","w",stdout);
	scanf("%d%d",&n,&m);
	for(i=0;i<n;++i){
		for(j=0;j<m;++j){
			scanf("%d",&k);
			d2[i][j]=countbit(k);
			d5[i][j]=countf(k);
		//	printf("(2: %d | 5: %d) ",d2[i][j],d5[i][j]);
			if(!i){
				f2[i][j]=f2[i][j-1]+d2[i][j];
				f5[i][j]=f5[i][j-1]+d5[i][j];
			}else if(!j){
				f2[i][j]=f2[i-1][j]+d2[i][j];
				f5[i][j]=f5[i-1][j]+d5[i][j];
			}else{
				f2[i][j]=min(f2[i-1][j],f2[i][j-1])+d2[i][j];
				f5[i][j]=min(f5[i-1][j],f5[i][j-1])+d5[i][j];
			}
		}
		printf("\n");
	}
	printf("%d\n",min(f2[n-1][m-1],f5[n-1][m-1]));
	return 0;
}