21 lines
564 B
C
21 lines
564 B
C
#include <stdio.h>
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int main() {
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char operater;
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int a = 0, b = 0, c = 0, d = 0;
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double result;
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scanf("%c %d %d %d %d", &operater, &a, &b, &c, &d);
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if (b == 0 || d == 0 || (operater == '/' && c == 0)) {
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printf("input error");
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}
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else {
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switch (operater) {
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case '+': result = (a/b)+(c/d); break;
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case '-': result = (a/b)-(c/d); break;
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case '*': result = (a/b)*(c/d); break;
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case '/': result = (a/b)/(c/d); break;
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}
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printf("%lf", result);
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}
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return 0;
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} |