提出 #16659720

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ソースコード 拡げる

#include<cstdio>
#define fo(i,a,b) for(int i=a;i<=b;i++)
int q,a,b,c,d,k,l,r,mid;
int min(int x,int y) {return x<y?x:y;}
int max(int x,int y) {return x>y?x:y;}
bool ck(int x) {return b-(x-1)/k<=(a-x+1ll)*k;}
int main()
{
	for(scanf("%d",&q);q--;)
	{
		scanf("%d%d%d%d",&a,&b,&c,&d);
		k=(a+b)/(min(a,b)+1);
		for(l=0,r=a;l<r;ck(mid=l+r+1>>1)?l=mid:r=mid-1);
		a-=l; b-=(l-1)/k; l+=(l-1)/k; r=l+b-a*k+1;
		fo(i,c,min(l,d)) putchar(65+(i%(k+1)==0));
		fo(i,max(l+1,c),d) putchar(66-((i-r)%(k+1)==0));
		puts("");
	}
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:29: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses]
   13 |   for(l=0,r=a;l<r;ck(mid=l+r+1>>1)?l=mid:r=mid-1);
      |                          ~~~^~
./Main.cpp:9:11: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
    9 |  for(scanf("%d",&q);q--;)
      |      ~~~~~^~~~~~~~~
./Main.cpp:11:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   11 |   scanf("%d%d%d%d",&a,&b,&c,&d);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

ジャッジ結果