HDU:2023 求平均成绩

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#include <stdio.h>#include <stdlib.h>int main(){    int i,n,j,x,m,sum1,sum2,flag;    double s1[60],s2[60];    int a[100][100];    while(scanf("%d %d",&n,&m)!=EOF){        sum1=sum2=0;        for(i=0;i<n;i++){            sum1=0;            for(j=0;j<m;j++){                scanf("%d",&a[i][j]);                sum1+=a[i][j];            }            s1[i]=(double)sum1;        }        for(j=0;j<m;j++){            for(i=0;i<n;i++){                sum2+=a[i][j];            }            s2[j]=sum2;            sum2=0;        }        x=0;        for(i=0;i<n;i++){            flag=1;            for(j=0;j<m;j++){                if((a[i][j]*1.0)<(s2[j]/n)){                    flag=0;                    break;                }else{flag=1;}            }            if(flag==1)x++;        }        for(i=0;i<n;i++)            if(i==n-1)printf("%.2lf",s1[i]/m);            else printf("%.2lf ",s1[i]/m);        printf("\n");        for(i=0;i<m;i++)            if(i==m-1)printf("%.2lf",s2[i]/n);            else printf("%.2lf ",s2[i]/n);        printf("\n");        printf("%d\n\n",x);    }    return 0;}