#include<iostream> using namespace std; int minP(int x,int y) { y = max(x,y); for(int i = y;i <= x * y;i ++) { if(i%x==0&&i%y==0) { return i; } } return 0; } int maxP(int x,int y) { for(int i = min(x,y);i >= 1;i --) { if(x%i==0&&y%i==0) return i; } return 0; } int main() { int a, b; char c; int d, e; while(scanf("%d/%d%c%d/%d",&a,&b,&c,&d,&e) != EOF) { int k = minP(b,e); a = a * k / b; d = d * k / e; int n; if(c == '+') { n = a + d; } else { n = a - d; } //cout << n << " " << k << endl; if(n > 0) { int q = maxP(n,k); cout << n/q << "/" << k/q << endl; } else if(n == 0) cout << 0 << endl; else { n = -n; int q = maxP(n,k); cout << "-" << n/q << "/" << k/q << endl; } } return 0; } /* Main.cc: In function 'int main()': Main.cc:29: error: 'scanf' was not declared in this scope Main.cc:29: error: 'EOF' was not declared in this scope */ |
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