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#include<stdio.h> int main(void) { int x,y; scanf("%d",&x); if(x<1){ y=x; } else if(x>=1&&x<10){ y=2*x-1; } else{ y=3*x-11; } printf("%d",y); return 0; }

 

转载于:https://www.cnblogs.com/liruijia199531/p/3440886.html

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