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我的为什么老是wrong answer#include<iostream> using namespace std; int main() { int n=0;int a[11][3];int sum=0,d=0; do{ cin>>n; if(n!=-1){ for(int j=1;j<=n;j++) { cin>>a[j][1] >>a[j][2]; }for(j=2;j<=n;j++) {d=a[1][1]*a[1][2]; sum=sum+a[j][1]*(a[j][2]-a[j-1][2]); } cout<<sum+d<<" "<<"miles"<<endl; sum=0; }}while(n!=-1); return 0; } Followed by:
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