Submission #13549

#TimeUsernameProblemLanguageResultExecution timeMemory
13549baneling100N-orthotope (kriii2_N)C++98
4 / 4
0 ms1084 KiB
#include <stdio.h>
#define N_MAX 11

int N, M, S1[N_MAX+1], E1[N_MAX+1], S2[N_MAX+1], E2[N_MAX+1];

int main(void) {

    int i;

    scanf("%d",&N);
    M=N;
    for(i=1 ; i<=N ; i++) scanf("%d %d",&S1[i],&E1[i]);
    for(i=1 ; i<=N ; i++) scanf("%d %d",&S2[i],&E2[i]);
    for(i=1 ; i<=N ; i++) {
        if(E1[i]<S2[i] || E2[i]<S1[i]) {
            printf("-1");
            return 0;
        }
        if(E1[i]==S2[i] || E2[i]==S1[i]) M--;
    }
    printf("%d",M);
    return 0;
}
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