西工大NOJ100题 解答

#includeintmain()inta,b,sum;scanf(%d%d,&a,&b);sum=a+b;printf(%dn,sum);return0;#include#definePI3.1415926intmain()doubler,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(%.2lfn%.2lfn%.2lfn%.2lfn%.2lfn,l,s,sq,vq,vz);return0;#includeintmain()doublema,eng,c,sum,ave;scanf(%lf%lf%lf,&ma,&eng,&c);sum=ma+eng+c;ave=sum/3;printf(%lfn%lfn,sum,ave);return0;#includeintmain()inta,b,c,m;scanf(%d%d%d,&a,&b,&c);if(ab)m=a;elsem=b;if(mc)m=c;printf(%d,m);return0;#includeintmain()intn;scanf(%d,&n);if(1000n10000)&(n/1000=n%10)&(n/100%10=n/10%10)printf(yesn);elseif(100n=1000)&(n/100=n%10)printf(yesn);elseif(10n=100)&(n/10=n%10)printf(yesn);elseif(0n=10)printf(yesn);elseprintf(non);return0;#includeintmain()doublel,bon;scanf(%lf,&l);if(l=10)bon=l*0.1;elseif(l20)bon=1+(l-10)*0.075;elseif(l40)bon=1.75+(l-20)*0.05;elseif(l60)bon=2.75+(l-40)*0.03;elseif(l100)bon=3.35+(l-60)*0.015;elsebon=3.95+(l-100)*0.01;printf(%lfn,bon);return0;#includeintmain()doubled,m;scanf(%lf,&d);if(d=2)m=7;elseif(d=15)if(d-2=(int)(d-2)m=7+(d-2)*1.5;elsem=7+(int)(d-2)+1)*1.5;elseif(d-15=(int)(d-15)m=26.5+(d-15)*2.1;elsem=26.5+(int)(d-15)+1)*2.1;printf(%lfn,m);return0;#includeintmain()inty,m,d,Days,sum;scanf(%d-%d-%d,&y,&m,&d);if(y%4=0&y%100!=0)|(y%400=0)Days=29;elseDays=28;switch(m)case1:sum=d;break;case2:sum=31+d;break;case3:sum=31+Days+d;break;case4:sum=62+Days+d;break;case5:sum=92+Days+d;break;case6:sum=123+Days+d;break;case7:sum=153+Days+d;break;case8:sum=184+Days+d;break;case9:sum=215+Days+d;break;case10:sum=245+Days+d;break;case11:sum=276+Days+d;break;case12:sum=307+Days+d;break;printf(%dn,sum);return0;#includeintmain()inti;scanf(%d,&i);if(i=90)printf(An);elseif(i=80)printf(Bn);elseif(i=70)printf(Cn);elseif(i=60)printf(Dn);elseprintf(En);return0;#includeintmain()doublex,y;scanf(%lf,%lf,&x,&y);if(x-2)*(x-2)+(y-2)*(y-2)=1)printf(10);elseif(x-2)*(x-2)+(y+2)*(y+2)=1)printf(10);elseif(x+2)*(x+2)+(y-2)*(y-2)=1)printf(10);elseif(x+2)*(x+2)+(y+2)*(y+2)=1)printf(10);elseprintf(0);return0;#includeintmain()doublel,x,r;scanf(%lf%lf,&l,&r);while(2*l*l*l-4*l*l+3*l-6)!=0&(2*r*r*r-4*r*r+3*r-6)!=0)x=(l+r)/2;if(2*l*l*l-4*l*l+3*l-6)*(2*x*x*x-4*x*x+3*x-6)=0)r=x;elsel=x;if(2*l*l*l-4*l*l+3*l-6=0)printf(%.2lf,l);elseprintf(%.2lf,r);return0;#include#includeintmain()inti=800,t=2,cnt=0,sum=0;doublee=-1;while(i=500)while(t=i-1)if(i%t=0)break;t+;if(t=i)e=pow(-1,cnt),sum=sum+e*i,cnt+;i-;t=2;printf(%d%d,cnt,sum);return0;#include#includeintmain()inta=1;doubleb=1,pi=0,c=1;while(fabs(c)=1e-6)pi=pi+c,b=b+2,a=-a,c=a/b;pi=pi*4;printf(%lfn,pi);return0;#includeintmain()inta1=1,a2=1,n=2,sum=2,t;while(sum=100)t=a1;a1=a2;a2=t+2*a2;sum=sum+a2;n+;printf(%dn,n-1);while(sum=1000)t=a1;a1=a2;a2=t+2*a2;sum=sum+a2;n+;printf(%dn,n-1);while(sum=10000)t=a1;a1=a2;a2=t+2*a2;sum=sum+a2;n+;printf(%dn,n-1);#includeintmain()intx,a,s,n=1;scanf(%d%d,&x,&a);s=x;if(a!=0)for(;n=1000)s=s/100%10*100+s/10%10*10+s%10;printf(%dn,s);return0;#includeintmain()intm,n,s;scanf(%d,&n);s=n*n*n;printf(%d*%d*%d=%d=,n,n,n,s);for(m=1;s!=n*m;m+);if(n%2=1)for(s=-n/2;sn/2;s+)printf(%d+,m+2*s);printf(%d,m+n/2*2);elsefor(s=-n/2;sn/2-1;s+)printf(%d+,m+s*2+1);printf(%d,m+(n/2-1)*2+1);return0;#includeintmain()chara,b,c,x,y,z;a=A,b=B,c=C,x=X,y=Y,z=Z;printf(%c=%cn,a,z);printf(%c=%cn,b,x);printf(%c=%cn,c,y);return0;#includeintmain()inta,b,t;scanf(%d%d,&a,&b);if(ab)t=a,a=b,b=t;for(;ab;a+)for(t=2;ta;t+)if(a%t=0)break;if(t=a)printf(%d,a);return0;#includeintmain()intn=1;doublea1=1,a2=2,a3,sum=2;while(n=19)a3=a1+a2;sum=sum+a3/a2;a1=a2;a2=a3;n+;printf(%lfn,sum);return0;#include#includeintmain()doublea;intn=0;scanf(%lf,&a);a=fabs(a);if(a1)a=a/10;n+;printf(%dn,n);return0;#includeintmain()inta=1,b=0,t,m,n=0;scanf(%d,&t);while(nt)m=b;b=3*a+2*b;a=m;n+;printf(%d%d,a,b);return0;#include#includeintmain()intn;intf(intn);scanf(%d,&n);printf(%dn,f(n);intf(intn)inta;if(n=1|n=2)a=0;elseif(n=3)a=1;elseif(n=4)a=3;elsea=f(n-1)*2+pow(2,n-4)-f(n-4);returna;#includeintmain()intn,x=1234,y=1,a,b,c,d,e,f,g,h,i,j;scanf(%d,&n);for(;x49383&y98765;x+)y=x*n;a=x/10000%10;b=x/1000%10;c=x/100%10;d=x/10%10;e=x%10;f=y/10000%10;g=y/1000%10;h=y/100%10;i=y/10%10;j=y%10;if(a=b|a=c|a=d|a=e|a=f|a=g|a=h|a=i|a=j)continue;if(b=c|b=d|b=e|b=f|b=g|b=h|b=i|b=j)continue;if(c=d|c=e|c=f|c=g|c=h|c=i|c=j)continue;if(d=e|d=f|d=g|d=h|d=i|d=j)continue;if(e=f|e=g|e=h|e=i|e=j)continue;if(f=g|f=h|f=i|f=j)continue;if(g=h|g=i|g=j)continue;if(h=i|h=j)continue;if(i=j)continue;printf(%05d/%05d=%dn,y,x,n);return0;#include#include#includeintmain()intm,n,i;doublex,s=0;scanf(%d%d,&n,&m);for(i=n;i=m;i+)x=pow(i,2.0);s=s+1/x;printf(%.5lfn,s);return0;#includeintmain()intx,y,a,b,L;doublet;scanf(%d%d%d%d%d,&x,&y,&a,&b,&L);if(a=b)printf(impossiblen);elseif(xy)if(ab)y=L-x+y,t=(double)y/(a-b);elsey=x-y,t=(double)y/(b-a);if(int)t=t)printf(%dn,(int)t);elseprintf(%lfn,t);elseif(ab)y=y-x,t=(double)y/(a-b);elsey=L-y+x,t=(double)y/(b-a);if(int)t=t)printf(%dn,(int)t);elseprintf(%lfn,t);return0;#includeint_max(inta,intb)returnab?a:b;inta20;intf2020;intmain()intn,i,j,s=0;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&ai);for(j=1;jn;j+)f00=a0,f0j=f0j-1*aj;for(i=1;in;i+)fii-1=1;for(j=i;jn;j+)fij=fij-1*aj;for(i=0;in;i+)for(j=i;jn;j+)s=_max(s,fij);if(s=0)printf(-1n);elseprintf(%dn,s);return0;#includeintmain()intx=192,y,z,a,b,c,d,e,f,g,h,i;for(;x328;x+)y=2*x;z=3*x;a=x/100%10;b=x/10%10;c=x%10;d=y/100%10;e=y/10%10;f=y%10;g=z/100%10;h=z/10%10;i=z%10;if(a=b|a=c|a=d|a=e|a=f|a=g|a=h|a=i|a=0)continue;if(b=c|b=d|b=e|b=f|b=g|b=h|b=i|b=0)continue;if(c=d|c=e|c=f|c=g|c=h|c=i|c=0)continue;if(d=e|d=f|d=g|d=h|d=i|d=0)continue;if(e=f|e=g|e=h|e=i|e=0)continue;if(f=g|f=h|f=i|f=0)continue;if(g=h|g=i|g=0)continue;if(h=i|h=0)continue;printf(%d%d%dn,x,y,z);return0;#includeintmain()inta,b,c,sum=10;scanf(%d%d%d,&a,&b,&c);for(;sum=100;sum+)if(sum%3=a&sum%5=b&sum%7=c)printf(%dn,sum);break;if(sum=101)printf(-1n);return0;#include#includeintmain()intce,y,m,n,a=0;scanf(%d,&n);for(ce=0;ce+=100)for(y=ce+1;yce+100;y+=2)for(m=3;m=sqrt(y)break;if(y=ce+101)a+;if(a=n)break;printf(%d%dn,ce,ce+99);return0;#includeintmain()intn,i;scanf(%d,&n);for(i=1;i=n;i+)if(i%7=0)printf(%d,i);elseif(i/1000%10=7|i/100%10=7|i/10%10=7|i%10=7)printf(%d,i);return0;#includedoublea100000000;intmain()intn,i;doubleave,sum=0;scanf(%d,&n);for(i=0;in;i+)scanf(%lf,&ai);sum=sum+ai;ave=sum/n;for(i=0,sum=0;in;i+)sum=sum+(ai-ave)*(ai-ave);printf(%lfn,sum);return0;#includeintf100000000;intmain()intn,i;scanf(%d,&n);for(i=0;in;i+)inta,b;scanf(%d%d,&a,&b);fi=a+b;for(i=0;i100)fi=fi/10%10*10+fi%10,printf(%dn,fi);elseprintf(%dn,fi);return0;#include#includeintgetbit(intn,intk)n=nk-1;returnn&1;intmain()intn,k;scanf(%d%d,&n,&k);printf(%d,getbit(n,k);return0;#includeint_min(intn)inti=0;if(n=100)i=n/100%10,n=n/10%10*10+n%10;if(n=50)i+=1,n-=50;if(n=10)i+=n/10%10,n%=10;if(n=5)i+=1,n-=5;if(n=2)i+=n/2,n%=2;if(n=1)i+=1;returni;intf100;intmain()intn,i,sum;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&fi);for(sum=0,i=0;in;i+)sum=sum+_min(fi);printf(%dn,sum);return0;#includeintfceil(doublex)if(x0)if(int)x=x)returnx;elsereturn(int)x+1;elsereturn(int)x;intmain()doublex;scanf(%lf,&x);printf(%dn,fceil(x);return0;#includeint_move(intvalue,intn)intt;if(n0)t=valuen|value32-n;elsen=-n;t=value32-n;returnt;intmain()intvalue,n;scanf(%d%d,&value,&n);printf(%dn,_move(value,n);return0;#includevoidtimesum(intAH,intAM,intAS,intBH,intBM,intBS)inth=0,m=0,s=0;if(AS+BS59)s=(AS+BS)-60,m+;elses=AS+BS;if(AM+BM59)m+=(AM+BM)-60),h+;elsem=AM+BM;h+=(AH+BH);printf(%d%d%dn,h,m,s);intmain()intAH,AM,AS,BH,BM,BS;scanf(%d%d%d%d%d%d,&AH,&AM,&AS,&BH,&BM,&BS);timesum(AH,AM,AS,BH,BM,BS);return0;#includevoidf(longintn)intm;m=n%10;printf(%d,m);n/=10;if(n!=0)f(n);intmain()longintn;scanf(%d,&n);f(n);return0;#includeintgetfloor(doublex)if(x0)return(int)x;elsereturn(int)x-1;intmain()doublex;scanf(%lf,&x);printf(%dn,getfloor(x);return0;#includeinlineintxchg(unsignedcharn)n=n4|n4;returnn;intmain()unsignedcharn;scanf(%d,&n);printf(%dn,xchg(n);return0;#includevoidQuickSort(intA100,ints,intm)inti,t;for(;s=m;s+)for(i=s;i=m;i+)if(AsAi)t=As;As=Ai;Ai=t;printf(%d,As);intmain()ints,m,n,i,A100;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&Ai);scanf(%d%d,&s,&m);for(i=0;is;i+)printf(%d,Ai);QuickSort(A,s,m);for(i=m+1;in;i+)printf(%d,Ai);return0;#includedoubleavg(intA100,ints,inte)doublesum;for(sum=0;s=e;s+)sum=sum+As;returnsum;intmain()intA100,s,e,i,n;doublea;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&Ai);scanf(%d%d,&s,&e);a=avg(A,s,e)/(e-s+1);printf(%lfn,a);return0;#includeintmain()intn,a100,i,j,s=0,t=0;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&ai);for(i=0;in-1;i+)for(j=i+1;jaj)s+;elseif(ait?t:s;printf(%dn,s);return0;#includevoidSelectionSort(intA,ints,intm)inti,t,n;for(n=s;n=s+m-1;n+)for(i=n;i=s+m-1;i+)if(AnAi)t=An;An=Ai;Ai=t;printf(%d,An);intmain()ints,m,n,i,A100;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&Ai);scanf(%d%d,&s,&m);for(i=0;is;i+)printf(%d,Ai);SelectionSort(A,s,m);for(i=m+1;in;i+)printf(%d,Ai);return0;#includevoidSelectionSort(intA,ints,intm)inti,t,n;for(n=s;n=s+m-1;n+)for(i=n;i=s+m-1;i+)if(AnAi)t=An;An=Ai;Ai=t;printf(%d,An);intmain()ints,m,n,i,A100;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&Ai);scanf(%d%d,&s,&m);for(i=0;is;i+)printf(%d,Ai);SelectionSort(A,s,m);for(i=m+1;in;i+)printf(%d,Ai);return0;#includeintmain()inta100100,n,i,j;scanf(%d,&n);for(i=0;in;i+)for(j=0;jn;j+)scanf(%d,&aij);for(i=0;in;i+)for(j=0;jn;j+)if(jn-i-1)printf();elseprintf(%d,aij);if(j=n-1)printf(n);return0;#includeintmain()inta100100,n,i,j;scanf(%d,&n);for(i=0;in;i+)for(j=0;jn;j+)scanf(%d,&aij);for(i=0;in;i+)for(j=0;jn;j+)if(ji)printf();elseprintf(%d,aij);if(j=n-1)printf(n);return0;#includeintmain()inta100100,n,i,j;scanf(%d,&n);for(i=0;in;i+)for(j=0;jn;j+)scanf(%d,&aij);for(i=0;in;i+)for(j=0;jn-i-1)printf();elseprintf(%d,aij);if(j=n-1)printf(n);return0;#includeintmain()inta100100,n,m,i,j,s1,s2;scanf(%d%d,&n,&m);for(i=0;in;i+)for(j=0;jm;j+)scanf(%d,&aij);for(j=0,s1=0;jm;j+)s1=s1+a0j+an-1j;for(i=1,s2=0;in-1;i+)s1=s1+ai0+aim-1;for(j=1;jm-1;j+)s2=s2+aij;printf(%dn,s1-s2);return0;#includeintmain()inta100,b100,i,j,n;scanf(%d,&n);for(i=0;in;i+)scanf(%d,&ai);bi=ai;for(i=1;in;i+=2)printf(%d,bi);return0;#include#includeintmain()chara1010;charb10;inti,j;for(i=0;i10;i+)scanf(%s,&ai);for(i=0;i9;i+)for(j=0;j0)strcpy(b,aj),strcpy(aj,aj+1),strcpy(aj+1,b);for(i=0;i10;i+)printf(%s,ai);return0;#includeintmain()chara10000,b100010;inti,j=0,k=0,m;gets(a);for(i=0;i+)if(ai=|ai=,|ai=.|ai=0)for(m=0;j=0;i-)printf(%s,bi);return0;#include#includeintmain()charA5=I,II,III,IV,V,VI,VII,VIII,IX,X,XI,XII;charB5;inti=0;while(Bi=getchar()!=n)i+;Bi=0;/这一句不能落下，否则结果都是13，不过为啥？for(i=0;i+)if(strcmp(Ai,B)=0)printf(%dn,i+1);break;return0;#include#includevoidstringmerge(chars1,chars