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下面程序三次调用同一函数sum,在下划线处填上适当内容,使输出结果为:S=2S=5S=9#include using namespace std;void sum(int i){static int s;(1） ;cout << "s=" << s << end;}void main(void){int i;for (i = 0; （2） )sum(i);}

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在下面程序下划线处填上适当内容,使程序执行结果为:200--100#include using namespace std;template (1)___T f(T x, T y){ if (sizeof(T) == (2))return x + y; elsereturn x*y;}void main() { cout << f(10, 20) << "--" << f(45.5, 54.5) << endl;}

下列程序的运行结果是-1。#includeusing namespace std;int f(int x,int y){ int c; if (（1)______)c = 1; else if (（2))c = 0; elsec = -1; return c;}void main(){ int i = 2, j = 3; int p = f((3)); cout << p << endl;}

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