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https://github.com/Kiritow/OJ-Problems-Source.git
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15 lines
248 B
C++
15 lines
248 B
C++
#include<stdio.h>
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int main()
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{
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double a,b;
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char s[100];
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double sum = 0.0;
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while(scanf("%s", s)!=EOF)
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{
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scanf("%lf%lf", &a, &b);
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sum += a*b;
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}
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printf("%.1lf\n", sum);
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return 0;
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}
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