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https://github.com/Kiritow/OJ-Problems-Source.git
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16 lines
274 B
C++
16 lines
274 B
C++
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#include<iostream>
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#include<stdio.h>
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using namespace std;
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int main()
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{
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int N,M,x,y;
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while(scanf("%d%d%d%d",&N,&M,&x,&y)!=EOF)
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{
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if(2*x==N&&2*y==M)
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printf("YES\n");
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else
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printf("NO\n");
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}
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return 0;
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}
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