nyoj1071 不可以！
#include#includeint main(){ int a,b; while(scanf("%d%d",&a,&b)!=EOF){ if(!(a*b)){ puts("Signs can't be sure"); continue; } if((a>>31)^(b>>31)) puts("Signs are opposite"); else pu
年轻鞋子
『SPOJ 687』repeats
转载声明:http://blog.csdn.net/kongming_acm/article/details/6321363 论文转载: http://wenku.baidu.com/link?url=xBx1136joEtqVhvjmGnFgsJ9c5LLr9aw2AsupDH8u2UpucAZB2J9WAFc48o6ZU-xphWysH8HAJZLwvImlfg36cJAQJfP3VejDo
