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1、#includeint main(){ int a,b,sum; scanf("%d%d",&a,&b); sum=a+b; printf("%d",sum); return 0;}#include#define PI 3.1415926int main(){ double r,h,l,s,sq,vq,vz; scanf("%lf%lf",&r,&h); l=2*PI*r; s=PI*r*r; sq=4*PI*r*r; vq=PI*r*r*r*4/3; vz=PI*r*r*h; printf("%.2lf%.
2、2lf%.2lf%.2lf%.2lf",l,s,sq,vq,vz); return 0;}#includeint main(){ double ma,eng,c,sum,ave; scanf("%lf%lf%lf",&ma,&eng,&c); sum=ma+eng+c; ave=sum/3; printf("%lf%lf",sum,ave); return 0;}#includeint main(){ int a,b,c,m; scanf("%d%d%d",&a,&b,&c); if (a>b) m
3、=a; else m=b; if (mint main(){ int n; scanf("%d",&n); if ((10004、"); else if(0int main(){ double l,bon; scanf("%lf",&l); if(l<=10) bon=l*0.1; else if(l<20) bon=1+(l-10)*0.075; else if(l<40) bon=1.75+(l-20)*0.05; else if(l<60) bon=2.75+(l-40)*0.03; else if(l<100) bon=3.35+(l
5、-60)*0.015; else bon=3.95+(l-100)*0.01; printf("%lf",bon); return 0;}#includeint main(){ double d,m; scanf("%lf",&d); if(d<=2) m=7; else if(d<=15){ if(d-2==(int)(d-2)) m=7+(d-2)*1.5; else m=7+((int)(d-2)+1)*1.5; } else if(d-15==(int)(d-15)) m=26.5+(d-15)*2.1; else
6、m=26.5+((int)(d-15)+1)*2.1; printf("%lf",m); return 0;}#includeint main(){ int y,m,d,Days,sum; scanf("%d-%d-%d",&y,&m,&d); if((y%4==0&&y%100!=0)
7、
8、(y%400==0)) Days=29; else Days=28; switch(m){ case 1:sum=d;break; case 2:sum=31+d;break; case 3:sum=31+Days+d;break; case 4:
9、sum=62+Days+d;break; case 5:sum=92+Days+d;break; case 6:sum=123+Days+d;break; case 7:sum=153+Days+d;break; case 8:sum=184+Days+d;break; case 9:sum=215+Days+d;break; case 10:sum=245+Days+d;break; case 11:sum=276+Days+d;break; case 12:sum=307