Compilare: main.cpp: In function 'int main()': main.cpp:36:33: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] dp[i & 1][j] = dp[1 - i & 1][j]; ~~^~~ main.cpp:37:21: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] if(dp[1 - i & 1][r] != -INF) ~~^~~ main.cpp:38:40: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] if(dp[i & 1][j] < dp[1 - i & 1][r] + v[i]){ ~~^~~ main.cpp:39:41: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] dp[i & 1][j] = dp[1 - i & 1][r] + v[i]; ~~^~~ main.cpp: In function 'void read()': main.cpp:14:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &P); ^ main.cpp:16:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^ main.cpp: In function 'int main()': main.cpp:24:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("conserve.in", "r", stdin); ^ main.cpp:25:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("conserve.out", "w", stdout); ^