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22 lines
352 B
22 lines
352 B
int exgcd(int a,int b,int x[],int y[]) {
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if(b == 0) {
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x[0] = 1;
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y[0] = 0;
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return a;
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}
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else {
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int r = exgcd(b, a % b, x, y);
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int t = x[0];
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x[0] = y[0];
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y[0] = (t - a / b * y[0]);
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return r;
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}
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}
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int main() {
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int a = 7, b = 15, x[1] = {1}, y[1] = {1};
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exgcd(a, b, x, y);
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x[0] = (x[0] % b + b) % b;
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putint(x[0]);
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return 0;
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} |