プログラマ専用SNS ミクプラ

コード:

#include <stdio.h>
#include <stdlib.h>

int main(){
    int i;
    int d,n;
    int *a;
    char *rl;
    int sum;
    
    scanf("%d %d",&d,&n);
    a = (int*)calloc(n,sizeof(int));
    rl = (char*)calloc(n,sizeof(char));
    
    for(i=0;i<n;i++){
        scanf("%d",&a[i]);
    }
    
    sum = a[0];
    rl[0] = 1;
    i = 1;
    
    while(i<n){
        if(rl[i]==0){
            rl[i] = 1;
            sum += a[i];
            if(abs(sum)>d){
                sum -= a[i];
            }else{
                i++;
            }
        }else if(rl[i]==1){
            rl[i] = 2;
            sum -= a[i];
            if(abs(sum)>d){
                sum += a[i];
            }else{
                i++;
            }
        }else{
            rl[i] = 0;
            i--;
        }
        
    }
    
    if(abs(sum)<=d){
        
    }else{
        while(i>0);
    }
    
    for(i=0;i<n;i++){
        if(rl[i]==1) printf("R");
        else if(rl[i]==2)printf("L");
        else while(i>0);
    }
    printf("\n");



    return 0;
}