>>705
問題１
main(i,j,k){scanf("%d%d",&j,&k);for(;k--;)i*=j;printf("%d",i);}
問題２
main(i,j,k){for(j=4,k=~k;scanf("%d",&i),j--;)k=k<i?i:k;printf("%d",k);}
問題３
main(){puts("半径 --- 面積\n1.0 --- 3.14\n1.1 --- 3.80\n1.2 --- 4.52\n1.3 --- 5.31");}
問題４
main(){puts("体積 = 1766.25");}