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来自「浙江大学计算机学院数据结构课程的教学课件」· HTM 代码 · 共 68 行
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<font size="4"><b><font face="Arial, Helvetica, sans-serif" size="5" color="#FF0033">Program</font><font face="Arial, Helvetica, sans-serif">
void <i><font color="#FF0033">padd</font></i>( int starta, int finisha, int startb, int finishb, int *startd,
int *finishd)
{ <font size="3" color="#FF0099">/* add A(x) and B(x) to obtain D (x) */</font>
float coefficient;
*startd = avail;
while ( starta <= finisha && startb <=finishb)
switch (COMPARE(terms [starta].expon, terms [startb.expon])) {
case -1: <font color="#FF0099" size="3">/ * a expon < b expon */</font>
attach(terms[startb].coef, terms[startb].expon);
startb ++;
break;
case 0: <font color="#FF0099" size="3"> /*equal exponents */</font>
coefficient = terms[starta].coef + terms[startb].coef;
if (coefficient)
attach(coefficient, terms[starta].expon);
starta++;
startb ++;
break;
case 1: <font size="3" color="#FF0099"> /* a expon > b expon */</font>
attach(terms[starta].coef,terms[starta].expon);
starta++;
}
<font size="3" color="#FF0099">/ * add in remaining terms of A(x) */</font>
for (; starta <= finisha; starta++)
attach(terms[starta].coef,terms[starta].expon);
<font size="3" color="#FF0099"> / * add in remaining terms of B(x) */</font>
for (; startb <= finishb; startb++)
attach(terms[startb].coef,terms[startb].expon);
*finishd = avail -1;
}
void attach (float coefficient, int exponent)
{ <font color="#FF0099" size="3"> /* add a new term to the polynomial */</font>
if (avail > MAX_TERMS) {
fprintf ( stderr, "Too many terms in the polynomial \ n");
exit(1);
}
terms[avail].coef = coefficient;
terms[avail++].expon = exponent;
}</font></b></font>
<img src="IMAGE/2-8.gif" width="456" height="196">
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