题目内容

以下程序的运行结果是。#includeint main(){ int a1,a2,b1,b2;int i=5,j=7,k=0;a1=!k;a2=i!=j;printf("a1=%d\ta2=%d\n",a1,a2);b1=k&&j;b2=k||j;printf("b1=%d\tb2=%d\n",b1,b2);return 0;}

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若运行时输入：2<回车>,则以下程序的运行结果是。#include int main( ){ char class;printf("Enter 1 for 1st class post or 2 for 2nd post");scanf("%c",&class);if (class=='1')printf("1st class postage is 19p");elseprintf("2nd class postage is 14p");return 0;}

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