Submission #847865

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
8478652023-09-10 16:26:27vjudge1Unija (COCI17_unija)C11
100 / 100
193 ms20052 KiB
#include <stdio.h>
int main() {
int n;
scanf("%d", &n);
int heights[5000006] = {0};
for (int i = 0; i < n; ++i) {
int x, y;
scanf("%d %d", &x, &y);
if (heights[x / 2] < y) {
heights[x / 2] = y;
}
}
long long res = 0;
for (int i = 5000000; i > 0; --i) {
if (heights[i] < heights[i + 1]) {
heights[i] = heights[i + 1];
}
res += heights[i];
}
printf("%lld\n", res << 1);
return 0;
}
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Compilation message (stderr)

unija.c: In function 'main':
unija.c:5:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 |     scanf("%d", &n);
      |     ^~~~~~~~~~~~~~~
unija.c:11:9: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%d %d", &x, &y);
      |         ^~~~~~~~~~~~~~~~~~~~~~
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