题解 | #合并表记录#

#import <Foundation/Foundation.h>

int main(int argc, char* argv[]) {
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    int n = 0;
    while (scanf("%d", &n) != EOF) {
        int array[11111112] = {0};
        int key, value;
        for (int i = 0; i < n; i++) {
            scanf("%d %d", &key, &value);
            array[key] += value;
        }

        for (int i = 0; i < 11111112; i++) {
            if (array[i] != 0) {
                printf("%d %d\n", i, array[i]);
            }
        }
    }

    [pool drain];
    return 0;
}