1 solutions

  • 0
    @ 2025-11-5 19:35:17

    C++ :

    #include<stdio.h>
    int cnt,sum;
    void Print(){
        if(++cnt%20==0)
            printf("%d\n",sum);
        else printf("%d ",sum);
    }
    int main(){
        int i,j,N,mul;
        scanf("%d",&N);
        cnt=0;
        sum=N+1;
        mul=-1;
        for(i=1;i<=N;i++){
            sum+=mul;
            Print();
            mul*=-1;
            for(j=0;j<i;j++){
                sum+=mul*2;
                Print();
            }
        }
        for(i=N;i>1;i--){
            mul*=-1;
            sum+=mul;
            Print();
            for(j=1;j<i;j++){
                sum+=mul*2;
                Print();
            }
        }
        printf("%d\n",sum-mul);
        return 0;
    }
    
    • 1

    Information

    ID
    19424
    Time
    1000ms
    Memory
    128MiB
    Difficulty
    (None)
    Tags
    # Submissions
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