25 lines
651 B
Objective-C
25 lines
651 B
Objective-C
#import <Foundation/Foundation.h>
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typedef NSInteger (^IntegerBlock)(void);
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NSInteger A (NSInteger kParam, IntegerBlock x1, IntegerBlock x2, IntegerBlock x3, IntegerBlock x4, IntegerBlock x5) {
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__block NSInteger k = kParam;
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__block __weak IntegerBlock weak_B;
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IntegerBlock B;
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weak_B = B = ^ {
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return A(--k, weak_B, x1, x2, x3, x4);
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};
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return k <= 0 ? x4() + x5() : B();
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}
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IntegerBlock K (NSInteger n) {
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return ^{return n;};
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}
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int main (int argc, const char * argv[]) {
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@autoreleasepool {
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NSInteger result = A(10, K(1), K(-1), K(-1), K(1), K(0));
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NSLog(@"%d\n", result);
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}
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return 0;
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}
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