Submission #12779

#TimeUsernameProblemLanguageResultExecution timeMemory
12779gs13068양말 찾기 (KPI13_socks)C++98
1 / 1
1952 ms1600 KiB
#include<cstdio> int d[2][65536]; int main() { int i,a,b; scanf("%*d"); while(~scanf("%d",&i)) { i&=2147483647; d[0][i>>16]^=i; d[1][i&65535]^=i; } a=b=0; for(i=0;i<65536;i++)if(d[0][i]) { if(a)b=d[0][i]; else a=d[0][i]; } if(!b) { a=b=0; for(i=0;i<65536;i++)if(d[1][i]) { if(a)b=d[1][i]; else a=d[1][i]; } } if(a>1e9)a^=-2147483648; if(b>1e9)b^=-2147483648; if(a>b)a^=b^=a^=b; printf("%d %d",a,b); }
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