C语言复****题纪实解答(有好方法的互相交流!):#include""main(){floati,s=0;for(i=3;i<=10;i++){s=s+(i+2)*(i+3)/(i+4);}printf("s=%.2f",s);}:#include""voidmain(){intscore;scanf("%d",&score);switch(score/5){case20:case19:case18:printf("A\n");break;case17:case16:case15:printf("B\n");break;case14:case13:case12:printf("C\n");break;case11:case10:case9:case8:case7:case6:case5:case4:case3:case2:case1:case0:printf("DI`msosorryyourIQ==0\n");break;default:break;}}:(if语句)#include""main(){intx,y;scanf("%d",&x);if(x<-5)y=x;if(x>=-5&&x<=0)y=x+1;if(x>0&&x<=5)y=x-1;if(x>5)y=2*x;printf("y=%d\n",y);}:有谁会第四题给我发来。我真的不会啊!!!!:一、#include""voidmain(){intmax_value(inta[3][3]);inti,j,a[3][3]={3,8,-2,5,6,10,4,9,18};for(i=0;i<3;i++){for(j=0;j<3;j++){printf("%d",a[i][j]);/*此部分为显示出矩阵(4~8行)可无*/}printf("\n");}printf("\nthemaxis:%d\n",max_value(a));}intmax_value(inta[3][3]){inti,j,max;i=0;max=a[0][0];for(j=0;j<3;j++){if(a[i][j]>max)max=a[i][j];}return(max);}二、在以一的基础上修改:#include""voidmain(){intmax_value(inta[3][3]);inti,j,a[3][3]={3,8,-2,5,6,10,4,9,18};printf("\nthemaxis:%d\n",max_value(a));}intmax_value(inta[3][3]){inti,j,max;max=a[0][0];for(i=0;i<3;i++){for(j=0;j<3;j++){if(a[i][j]>max)max=a[i][j];}}return(max);}:方法一:(循环语句)#include""voidmain(){inti,j;for(i=0;i<4;i++){for(j=0;j<3-i;j++){printf("");}printf("***\n");}}方法二:(数组)#include""voidmain()
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